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OUP accepted manuscript. Clin Chem 2022; 68:627-632. [DOI: 10.1093/clinchem/hvac040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/19/2022] [Indexed: 11/12/2022]
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Capalbo A, Poli M, Rienzi L, Girardi L, Patassini C, Fabiani M, Cimadomo D, Benini F, Farcomeni A, Cuzzi J, Rubio C, Albani E, Sacchi L, Vaiarelli A, Figliuzzi M, Findikli N, Coban O, Boynukalin FK, Vogel I, Hoffmann E, Livi C, Levi-Setti PE, Ubaldi FM, Simón C. Mosaic human preimplantation embryos and their developmental potential in a prospective, non-selection clinical trial. Am J Hum Genet 2021; 108:2238-2247. [PMID: 34798051 PMCID: PMC8715143 DOI: 10.1016/j.ajhg.2021.11.002] [Citation(s) in RCA: 118] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/29/2021] [Indexed: 11/17/2022] Open
Abstract
Chromosome imbalance (aneuploidy) is the major cause of pregnancy loss and congenital disorders in humans. Analyses of small biopsies from human embryos suggest that aneuploidy commonly originates during early divisions, resulting in mosaicism. However, the developmental potential of mosaic embryos remains unclear. We followed the distribution of aneuploid chromosomes across 73 unselected preimplantation embryos and 365 biopsies, sampled from four multifocal trophectoderm (TE) samples and the inner cell mass (ICM). When mosaicism impacted fewer than 50% of cells in one TE biopsy (low-medium mosaicism), only 1% of aneuploidies affected other portions of the embryo. A double-blinded prospective non-selection trial (NCT03673592) showed equivalent live-birth rates and miscarriage rates across 484 euploid, 282 low-grade mosaic, and 131 medium-grade mosaic embryos. No instances of mosaicism or uniparental disomy were detected in the ensuing pregnancies or newborns, and obstetrical and neonatal outcomes were similar between the study groups. Thus, low-medium mosaicism in the trophectoderm mostly arises after TE and ICM differentiation, and such embryos have equivalent developmental potential as fully euploid ones.
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Tšuiko O, Vanneste M, Melotte C, Ding J, Debrock S, Masset H, Peters M, Salumets A, De Leener A, Pirard C, Kluyskens C, Hostens K, van de Vijver A, Peeraer K, Denayer E, Vermeesch JR, Dimitriadou E. Haplotyping-based preimplantation genetic testing reveals parent-of-origin specific mechanisms of aneuploidy formation. NPJ Genom Med 2021; 6:81. [PMID: 34620870 PMCID: PMC8497526 DOI: 10.1038/s41525-021-00246-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 09/16/2021] [Indexed: 11/17/2022] Open
Abstract
Chromosome instability is inherent to human IVF embryos, but the full spectrum and developmental fate of chromosome anomalies remain uncharacterized. Using haplotyping-based preimplantation genetic testing for monogenic diseases (PGT-M), we mapped the parental and mechanistic origin of common and rare genomic abnormalities in 2300 cleavage stage and 361 trophectoderm biopsies. We show that while single whole chromosome aneuploidy arises due to chromosome-specific meiotic errors in the oocyte, segmental imbalances predominantly affect paternal chromosomes, implicating sperm DNA damage in segmental aneuploidy formation. We also show that postzygotic aneuploidy affects multiple chromosomes across the genome and does not discriminate between parental homologs. In addition, 6% of cleavage stage embryos demonstrated signatures of tripolar cell division with excessive chromosome loss, however hypodiploid blastomeres can be excluded from further embryo development. This observation supports the selective-pressure hypothesis in embryos. Finally, considering that ploidy violations may constitute a significant proportion of non-viable embryos, using haplotyping-based approach to map these events might further improve IVF success rate.
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Affiliation(s)
- Olga Tšuiko
- Department of Human Genetics, Centre for Human Genetics, University Hospitals Leuven, Leuven, 3000, Belgium.,Laboratory of Cytogenetics and Genome Research, Centre for Human Genetics, KU Leuven, Leuven, 3000, Belgium
| | - Michiel Vanneste
- Department of Human Genetics, Centre for Human Genetics, University Hospitals Leuven, Leuven, 3000, Belgium
| | - Cindy Melotte
- Department of Human Genetics, Centre for Human Genetics, University Hospitals Leuven, Leuven, 3000, Belgium
| | - Jia Ding
- Department of Human Genetics, Centre for Human Genetics, University Hospitals Leuven, Leuven, 3000, Belgium
| | - Sophie Debrock
- Leuven University Fertility Center, University Hospitals Leuven, Leuven, 3000, Belgium
| | - Heleen Masset
- Laboratory of Cytogenetics and Genome Research, Centre for Human Genetics, KU Leuven, Leuven, 3000, Belgium
| | - Maire Peters
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, Tartu, 50406, Estonia
| | - Andres Salumets
- Department of Obstetrics and Gynaecology, Institute of Clinical Medicine, University of Tartu, Tartu, 50406, Estonia
| | - Anne De Leener
- Centre for Human Genetics, Cliniques Universitaires Saint Luc, UCLouvain, Brussels, 1200, Belgium
| | - Céline Pirard
- Department of Gynaecology, Cliniques Universitaires Saint Luc, UCLouvain, Brussels, 1200, Belgium
| | - Candice Kluyskens
- Department of Gynaecology, Cliniques Universitaires Saint Luc, UCLouvain, Brussels, 1200, Belgium
| | - Katleen Hostens
- Centre for Reproductive Medicine (CRG)-Brugge-Kortrijk, AZ Sint-Jan Brugge-Oostende AV, Brugge, 8000, Belgium
| | - Arne van de Vijver
- Centre for Reproductive Medicine (CRG)-Brugge-Kortrijk, AZ Sint-Jan Brugge-Oostende AV, Brugge, 8000, Belgium
| | - Karen Peeraer
- Leuven University Fertility Center, University Hospitals Leuven, Leuven, 3000, Belgium
| | - Ellen Denayer
- Department of Human Genetics, Centre for Human Genetics, University Hospitals Leuven, Leuven, 3000, Belgium
| | - Joris Robert Vermeesch
- Department of Human Genetics, Centre for Human Genetics, University Hospitals Leuven, Leuven, 3000, Belgium. .,Laboratory of Cytogenetics and Genome Research, Centre for Human Genetics, KU Leuven, Leuven, 3000, Belgium.
| | - Eftychia Dimitriadou
- Department of Human Genetics, Centre for Human Genetics, University Hospitals Leuven, Leuven, 3000, Belgium.
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Lannoo L, Lenaerts L, Van Den Bogaert K, Che H, Brison N, Devriendt K, Amant F, Vermeesch JR, Van Calsteren K. Non-invasive prenatal testing suggesting a maternal malignancy: What do we tell the prospective parents in Belgium? Prenat Diagn 2021; 41:1264-1272. [PMID: 34405430 DOI: 10.1002/pd.6031] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 08/12/2021] [Accepted: 08/15/2021] [Indexed: 12/20/2022]
Abstract
Cancer is diagnosed in one in 1000 to 1500 pregnancies. Most frequently encountered malignancies during pregnancy are breast cancer, hematological cancer, cervical cancer and malignant melanoma. Maternal cancer is associated with an increased risk of IUGR and preterm labor, especially in patients with systemic disease or those receiving chemotherapy during pregnancy, requiring a high-risk obstetrical follow-up. Fetal aneuploidy screening by non-invasive prenatal testing (NIPT) can lead to the incidental identification of copy number alterations derived from non-fetal cell-free DNA (cfDNA), as seen in certain cases of maternal malignancy. The identification of tumor-derived cfDNA requires further clinical, biochemical, radiographic and histological investigations to confirm the diagnosis. In such cases, reliable risk estimation for fetal trisomy 21, 18 and 13 is impossible. Therefore, invasive testing should be offered when ultrasonographic screening reveals an increased risk for chromosomal anomalies, or when a more accurate test is desired. When the fetal karyotype is normal, long term implications for the fetus refer to the consequences of the maternal disease and treatment during pregnancy. This manuscript addresses parental questions when NIPT suggests a maternal malignancy. Based on current evidence and our own experience, a clinical management scheme in a multidisciplinary setting is proposed.
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Affiliation(s)
- Lore Lannoo
- Department of Development and Regeneration, Division Woman and Child, Clinical Department Obstetrics and Gynaecology, University Hospital Leuven, KULeuven, Leuven, Belgium
| | | | | | - Huiwen Che
- Department of Human Genetics, KULeuven, Leuven, Belgium
| | | | | | - Frédéric Amant
- Department of Gynaecological Oncology, KULeuven, Leuven, Belgium.,Center for Gynecological Oncology Amsterdam, Academic Medical Centre Amsterdam, University of Amsterdam, The Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | | | - Kristel Van Calsteren
- Department of Development and Regeneration, Division Woman and Child, Clinical Department Obstetrics and Gynaecology, University Hospital Leuven, KULeuven, Leuven, Belgium
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Performance and Diagnostic Value of Genome-Wide Noninvasive Prenatal Testing in Multiple Gestations. Obstet Gynecol 2021; 137:1102-1108. [PMID: 33957658 DOI: 10.1097/aog.0000000000004385] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/28/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate the accuracy and diagnostic value of genome-wide noninvasive prenatal testing (NIPT) for the detection of fetal aneuploidies in multiple gestations, with a focus on dichorionic-diamniotic twin pregnancies. METHODS We performed a retrospective cohort study including data from pregnant women with a twin or higher-order gestation who underwent genome-wide NIPT at one of the eight Belgian genetic centers between November 1, 2013, and March 1, 2020. Chorionicity and amnionicity were determined by ultrasonography. Follow-up invasive testing was carried out in the event of positive NIPT results. Sensitivity and specificity were calculated for the detection of trisomy 21, 18, and 13 in the dichorionic-diamniotic twin cohort. RESULTS Unique NIPT analyses were performed for 4,150 pregnant women with a multiple gestation and an additional 767 with vanishing gestations. The failure rate in multiple gestations excluding vanishing gestations ranged from 0% to 11.7% among the different genetic centers. Overall, the failure rate was 4.8%, which could be reduced to 1.2% after single resampling. There were no common fetal trisomies detected among the 86 monochorionic-monoamniotic and 25 triplet cases. Two monochorionic-diamniotic twins had an NIPT result indicative of a trisomy 21, which was confirmed in both fetuses. Among 2,716 dichorionic-diamniotic twin gestations, a sensitivity of 100% (95% CI 74.12-100%) and a specificity of 100% (95% CI 99.86-100%) was reached for trisomy 21 (n=12). For trisomy 18 (n=3), the respective values were 75% (95% CI 30.06-95.44%) sensitivity and 100% (95% CI 99.86-100%) specificity, and for trisomy 13 (n=2), 100% (95% CI 20.65-100%) sensitivity and 99.96% (95% CI 99.79-99.99%) specificity. In the vanishing gestation group, 28 NIPT results were positive for trisomy 21, 18, or 13, with only five confirmed trisomies. CONCLUSION Genome-wide NIPT performed accurately for detection of aneuploidy in dichorionic-diamniotic twin gestations.
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de Groot-van der Mooren M, de Graaf G, Weijerman ME, Hoffer MJV, Knijnenburg J, van der Kevie-Kersemaekers AMMF, Kooper AJA, Voorhoeve E, Sikkema-Raddatz B, van Zutven LJCM, Srebniak MI, Huijsdens-van Amsterdam K, Engelen JJM, Smeets D, van Kaam AH, Cornel MC. Does non-invasive prenatal testing affect the livebirth prevalence of Down syndrome in the Netherlands? A population-based register study. Prenat Diagn 2021; 41:1351-1359. [PMID: 34176145 PMCID: PMC8519113 DOI: 10.1002/pd.6003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/06/2021] [Accepted: 06/17/2021] [Indexed: 11/25/2022]
Abstract
Objective To evaluate if non‐invasive prenatal testing (NIPT) affects livebirth (LB) prevalence of Down syndrome (DS) in the Netherlands. Method Data from clinical genetics laboratories and the Working Party on Prenatal Diagnosis and Therapy (2014–2018) and previous published data (1991–2013) were used to assess trends for DS LB prevalence and reduction percentage (the net decrease in DS LBs resulting from selective termination of pregnancies). Statistics Netherlands provided general population data. Results DS LB prevalence increased from 11.6/10,000 in 1991 to 15.9/10,000 in 2002 (regression coefficient 0.246 [95% CI: 0.105–0.388; p = 0.003]). After 2002, LB prevalence decreased to 11.3/10,000 in 2014 and further to 9.9/10,000 in 2018 (regression coefficient 0.234 (95% CI: −0.338 to −0.131; p < 0.001). The reduction percentage increased from 26% in 1991 to 55.2% in 2018 (regression coefficient 0.012 (95% CI: 0.010–0.013; p < 0.001)). There were no trend changes after introducing NIPT as second‐tier (2014) and first‐tier test (2017). Conclusions Introducing NIPT did not change the decreasing trend in DS LB prevalence and increasing trend in reduction percentage. These trends may be caused by a broader development of more prenatal testing that had already started before introducing NIPT.
What's already known about this topic?
The introduction of NIPT changed the landscape in prenatal screening worldwide. No long‐term population‐based study on the impact of NIPT on DS LB prevalence has been published.
What does this study add?
This study shows how to calculate DS LB prevalence in the absence of a national registration program. Introducing NIPT caused no trend changes in DS LB prevalence and reduction percentage in the Netherlands.
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Affiliation(s)
- Maurike de Groot-van der Mooren
- Department of Neonatology, Amsterdam Public Health and Amsterdam Reproduction & Development Research Institute, Amsterdam University Medical Centres, location VUmc, Amsterdam, The Netherlands
| | - Gert de Graaf
- Dutch Down Syndrome Foundation, Meppel, The Netherlands
| | | | - Mariette J V Hoffer
- Department of Clinical Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | - Jeroen Knijnenburg
- Department of Clinical Genetics, Leiden University Medical Centre, Leiden, The Netherlands
| | | | - Angelique J A Kooper
- Department of Clinical Genetics, Amsterdam University Medical Centres, location AMC, Amsterdam, The Netherlands
| | - Els Voorhoeve
- Department of Clinical Genetics, Amsterdam University Medical Centres, location VUmc, Amsterdam, The Netherlands
| | | | | | | | | | - John J M Engelen
- Department of Clinical Genetics, Research Institute Growth and Development (GROW), Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Dominique Smeets
- Department of Human Genetics, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Anton H van Kaam
- Department of Neonatology and Amsterdam Reproduction & Development Research Institute, Amsterdam University Medical Centres, location VUmc, Amsterdam, The Netherlands
| | - Martina C Cornel
- Department of Clinical Genetics and Amsterdam Public Health Research Institute, Amsterdam University Medical Centres, Vrije Universiteit Amsterdam, location VUmc, Amsterdam, The Netherlands
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Bryant L. What is so complicated about prenatal testing for Down syndrome? A personal view. Hum Genet 2021; 141:1013-1015. [PMID: 34002259 PMCID: PMC8128085 DOI: 10.1007/s00439-021-02292-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/06/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Louise Bryant
- School of Medicine, University of Leeds, Worsley Building, Clarendon Way, Leeds, LS2 9JT, UK.
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58
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Lenaerts L, Brison N, Maggen C, Vancoillie L, Che H, Vandenberghe P, Dierickx D, Michaux L, Dewaele B, Neven P, Floris G, Tousseyn T, Lannoo L, Jatsenko T, Bempt IV, Van Calsteren K, Vandecaveye V, Dehaspe L, Devriendt K, Legius E, Bogaert KVD, Vermeesch JR, Amant F. Comprehensive genome-wide analysis of routine non-invasive test data allows cancer prediction: A single-center retrospective analysis of over 85,000 pregnancies. EClinicalMedicine 2021; 35:100856. [PMID: 34036251 PMCID: PMC8138727 DOI: 10.1016/j.eclinm.2021.100856] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 03/19/2021] [Accepted: 04/01/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Implausible false positive results in non-invasive prenatal testing (NIPT) have been occasionally associated with the detection of occult maternal malignancies. Hence, there is a need for approaches allowing accurate prediction of whether the NIPT result is pointing to an underlying malignancy, as well as for organized programs ensuring efficient downstream clinical management of these cases. METHODS Using a data set of 88,294 NIPT performed at University Hospital Leuven (Belgium) between November 2013 and March 2020, we retrospectively evaluated the positive predictive value (PPV) of our NIPT approach for cancer detection. In this approach, whole-genome cell-free DNA (cfDNA) data from NIPT were scrutinized for the presence of (sub)chromosomal copy number alterations (CNAs) predictive for a malignancy, using an unbiased NIPT analysis pipeline coined GIPSeq. For suspected cases, the presence of a maternal cancer was evaluated via subsequent multidisciplinary clinical follow-up examinations. The cancer-specificity of the identified CNAs in cfDNA was assessed through genetic analyses of a tumor biopsy. FINDINGS Fifteen women without a cancer history were identified with a GIPSeq result suggestive of a malignant process. Their cfDNA profiles showed either genome-wide aberrations or a single trisomy 8. Upon clinical examinations, a solid or hematological cancer was identified in 4 and 7 cases, respectively. Three women were identified as having a clonal mosaicism. For one case no underlying condition was found. These numbers add to a PPV of 73%. Based on this experience, we presented a multidisciplinary care path for efficient clinical management of these cases. INTERPRETATION The presented approach for analysing NIPT results has a high PPV, yet unknown sensitivity, for detecting asymptomatic malignancies upon routine NIPT. Given the complexity of diagnosing a pregnant woman with cancer, clinical follow-up should occur in a well-designed multidisciplinary setting, such as via the care model that we presented here. FUNDING This work was supported by Research Foundation Flanders and KU Leuven funding.
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Affiliation(s)
| | - Nathalie Brison
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
| | - Charlotte Maggen
- Department of Oncology, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Leen Vancoillie
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
| | - Huiwen Che
- Department of Human Genetics, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Peter Vandenberghe
- Department of Human Genetics, KU Leuven, Herestraat 49, Leuven, Belgium
- Hematology, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
| | - Daan Dierickx
- Department of Oncology, KU Leuven, Herestraat 49, Leuven, Belgium
- Hematology, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
| | - Lucienne Michaux
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Human Genetics, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Barbara Dewaele
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
| | - Patrick Neven
- Department of Oncology, KU Leuven, Herestraat 49, Leuven, Belgium
- Gynaecology and Obstetrics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
| | - Giuseppe Floris
- Pathology, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Imaging & Pathology, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Thomas Tousseyn
- Pathology, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Imaging & Pathology, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Lore Lannoo
- Gynaecology and Obstetrics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Department of Development and Regeneration, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Tatjana Jatsenko
- Department of Human Genetics, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Isabelle Vanden Bempt
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Human Genetics, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Kristel Van Calsteren
- Gynaecology and Obstetrics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Department of Development and Regeneration, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Vincent Vandecaveye
- Radiology, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Imaging & Pathology, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Luc Dehaspe
- Genomics Core facility, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Koenraad Devriendt
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Human Genetics, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Eric Legius
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Human Genetics, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Kris Van Den Bogaert
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Human Genetics, KU Leuven, Herestraat 49, Leuven, Belgium
| | - Joris Robert Vermeesch
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Department of Human Genetics, KU Leuven, Herestraat 49, Leuven, Belgium
- Genomics Core facility, KU Leuven, Herestraat 49, Leuven, Belgium
- Corresponding authors.
| | - Frédéric Amant
- Department of Oncology, KU Leuven, Herestraat 49, Leuven, Belgium
- Gynaecology and Obstetrics, University Hospitals Leuven, Herestraat 49, Leuven, Belgium
- Academic Medical Centers Amsterdam-University of Amsterdam and The Netherlands Cancer Institute-Antoni van Leeuwenhoek, Amsterdam, Netherlands
- Corresponding authors.
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