376
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Halyk L, Wong S, Lee B, Pabbaraju K, Fox J. O16 Etiological diagnosis of respiratory outbreaks using a combination of antigen and nucleic acid amplification tests. Int J Antimicrob Agents 2009. [PMCID: PMC7172065 DOI: 10.1016/s0924-8579(09)70163-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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377
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Pang X, Wong S, Li V, Preiksaitis J, Lee B. P158 Norovirus GII.4 variants associated with epidemic gastroenteritis outbreaks in Alberta: 2000 to 2008. Int J Antimicrob Agents 2009. [DOI: 10.1016/s0924-8579(09)70377-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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378
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Khurana V, Wong S, Deserres J, Pabbaraju K, Fox J. P213 Identification of adenovirus serotypes by sequencing directly from clinical samples. Int J Antimicrob Agents 2009. [DOI: 10.1016/s0924-8579(09)70432-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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379
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Wong S, Pabbaraju K, Zarra D, Tokaryk K, Fox J. P199 Evaluation of a multiplex real-time assay for quantification of human adenoviruses in different specimen types. Int J Antimicrob Agents 2009. [DOI: 10.1016/s0924-8579(09)70418-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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380
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Smieja M, Singh P, Moss L, Pabbaraju K, Wong S, Fox J, Loeb M. P262 Self or parent-collected nasal mid-turbinate flocked swabs versus nasopharyngeal swabs for influenza diagnosis in a community-based study. Int J Antimicrob Agents 2009. [DOI: 10.1016/s0924-8579(09)70481-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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381
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Zahariadis G, Balutis K, Wong A, Wong S, Pabbaraju K, Severini A, Tilley P, Fox J. P215 Evaluation of extraction and genotyping methods for human papillomavirus detection and analysis from liquid-based cytology specimens. Int J Antimicrob Agents 2009. [DOI: 10.1016/s0924-8579(09)70434-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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382
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Chan F, Wong S, Leung J, Leung P, Woo J. Author's Response. Int J Epidemiol 2009. [DOI: 10.1093/ije/dyn011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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383
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Desai J, Wong S, Chong G, Bibby D, Leske A, Kremmidiotis G, Rosen M, Rischin D. Phase I, pharmacokinetic, and pharmacodynamic evaluation of BNC105P, a novel anticancer agent that is both a vascular disrupting agent (VDA) and an inhibitor of cancer cell proliferation. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e14512] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14512 Background: BNC105P is a novel anticancer agent that inhibits tubulin polymerization and acts as a VDA. BNC105P is a phosphorylated parent compound which rapidly becomes the active agent BNC105. BNC105 exhibits 100-fold specificity for activated endothelial cells compared to quiescent endothelial cells. Methods: BNC105P (2.1 to 18.9 mg/m2) was given IV over 10 min on day 1 and 8 every 21 days to patients (pts) with advanced solid tumors (ECOG 0–2) and adequate organ function. The objectives were to determine safety, tolerability, MTD and pharmacokinetics (PK). A pharmacodynamic response was evaluated using DCE-MRI with two baseline and two post dose assessments (3–6, 24 h). DLTs were determined during the first 21 days. Results: 9 pts (7 M; 2 F), median age 60 years have been enrolled with one pt each at 2.1 and 4.2 mg/m2. At 8.4 mg/m2, one pt experienced Grade 2 (Gr 2) mucositis and a switch to a ‘3+3’ design occurred. No DLTs have been observed in 3 pts at 12.6 mg/m2 and 1 pt at 18.9 mg/m2. Notable toxicity includes one episode of Gr 1 febrile episode possibly related to infusion, two episodes of Gr 1 fatigue and one Gr 1 rash. PK data of BNC105 indicates a linear increase in plasma AUC levels (Table) and plasma half life of < 0.5 h. Best observed responses were SD in 2/9 pts including one pt with mesothelioma (progression at entry) with SD up to week 22 (8.4 mg/m2). At doses ≥ 8.4 mg/m2, DCE-MRI images indicate changes in tumor perfusion post-dose. Two pts at 12.6 mg/m2 had a decrease in Ktrans values of 6 and 15 % compared to baseline. Conclusions: Pharmacodynamically active doses have been achieved with plasma drug levels correlating with active preclinical plasma exposure. To date, no excess toxicity has been observed at doses up to 18.9 mg/m2. [Table: see text] [Table: see text]
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384
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Curran WJ, Chen AY, Garden AS, Harari P, Murphy BA, Wong S, Bellm LA, Schwartz M, Dawson D, Ang KK. Longitudinal oncology registry of head and neck carcinoma (LORHAN): First report of outcomes. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.6071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
6071 Background: Registries can be invaluable for describing patterns of care and outcomes for a population of patients (pts). We report the initial survival findings from LORHAN, a prospective, longitudinal, observational national registry of head and neck carcinoma (HNC) pts. Methods: Pts are eligible for LORHAN if they have newly diagnosed HNC, are scheduled to receive radiotherapy (RT) or drug therapy, are ≥18 years of age and have provided written informed consent. Data are entered in the registry electronically and transferred via Secure HTTP protocols. Patient confidentiality is strictly maintained. Pts are followed from time of initial diagnosis and for a minimum of 2 and up to 10 years. When information is complete and has been verified and signed off by the investigator, a record is locked. Only locked records are summarized and reported. Results: 2,354 pts have been enrolled in LORHAN since Dec. 2005. Of these, 1,326 pts have completed initial cancer treatment and have locked records. 1- and 2-year follow-up data are available for 583 and 56 pts, respectively. Baseline characteristics were similar between settings, except that pts treated at academic centers were significantly younger (58 vs. 62 years of age), had poorer performance status (mean Zubrod: 0.9 vs. 0.7), had fewer laryngeal tumors (17% vs. 27% of pts) but more oropharyngeal tumors (42% vs. 37% of pts) and presented with more advanced disease (stage IV: 70% vs. 48% of pts) compared to pts treated in community. Treatment did not differ by setting. Treatment and survival data are shown below. Conclusions: LORHAN demonstrates it is feasible to collect more detailed information about patient and tumor features and treatment other than surgery. Changes in the pattern of care and survival findings are expected to emerge as newer regimens, including IC and targeted agents, are incorporated more broadly into clinical practice, and data in LORHAN matures. [Table: see text] [Table: see text]
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385
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Gore EM, Bae K, Wong S, Bonner J, Sun A, Schild S, Gaspar LE, Bogart J, Werner-Wasik M, Choy H. A phase III comparison of prophylactic cranial irradiation versus observation in patients with locally advanced non-small cell lung cancer: Initial analysis of Radiation Therapy Oncology Group 0214. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.7506] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
7506 Background: The incidence of central nervous system (CNS) metastases is high in patients with locally advanced non-small cell lung cancer. Brain as an only site of relapse appears increasingly common as loco-regional and extra-cranial systemic treatment improves. There is not standard agreement as to how to address this risk. Methods: Patients with stage III NSCLC without progression of disease after loco-regional treatment with surgery and/or radiation therapy with or without chemotherapy were eligible. Participants were randomized to prophylactic cranial irradiation (PCI) or observation and stratified by stage (IIIA or B), histology (non-squamous or squamous) and therapy (surgery or no surgery). PCI was delivered once daily at 2Gy per fraction to 30Gy. The primary endpoint of the study was overall survival (OS). Secondary endpoints were disease free survival (DFS) and the impact of PCI on incidence of CNS metastases, neuropsychological function, and quality of life (QoL). Kaplan- Meier estimation with the log-rank test was used for OS and DFS and the logistic regression model was used for calculating the incidence of CNS metastasis. Results: Total accrual was 356 patients of the targeted 1058 between 9/19/02 and 8/30/07. The study was closed early due to slow accrual. 340 patients were evaluable. One year OS (p=0.86, 75.6 % and 76.9% for PCI and observation) and one year DFS (p=0.11, 56.4% and 51.2% for PCI and observation) were not statistically significantly different. However, CNS metastatic rate at 1 year was statistically significantly different with CNS relapse 7.7% vs. 18% for PCI vs. observation (p=0.004). Logistic regression showed that the patients in the observation arm are 2.52 times more likely to develop CNS metastases than those in the PCI arm (odds ratio=2.52, 95% CI=(1.32–4.80)). Conclusions: PCI in patients without progressive disease after loco-regional therapy for III NSCLC significantly decreases the rate of CNS metastases. This study did not show a statistically significant difference in OS or DFS. Forthcoming analysis of the impact of PCI on neuropsychological function and QoL will influence the recommendations regarding the standard use of PCI. No significant financial relationships to disclose.
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386
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Craythorne EE, Wong S, Jones RM, du Vivier AWP. A characteristic rash. BMJ 2009; 338:b1451. [PMID: 19457971 DOI: 10.1136/bmj.b1451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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387
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Ng F, Wong S, Gomis P, Lim J, Passariello G, Ansermino JM. Probabilistic assessment of Autonomic Nervous System fluctuations during tilt table tests. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2009; 2008:4692-5. [PMID: 19163763 DOI: 10.1109/iembs.2008.4650260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A number of reports have advocated the use of Heart Rate Variability (HRV) as a non invasive method of monitoring the Autonomic Nervous System (ANS). In the anesthesia and critical care monitoring settings, the development of an instrument able to provide real-time information about the ANS state at different stages of any procedure would provide improved safety for patients undergoing diagnostic or therapeutic interventions. However, real-time analysis of HRV can be particularly challenging since larger effective lengths of observation provide better spectral resolution. Our study explores a probabilistic approach that analyzes changes in HRV parameters obtained from an autoregressive (AR) model technique using Burg's methods to evaluate very short observation windows while preserving appropriate frequency resolution. These HRV parameters are continuosly compared to a baseline state, and a probability trend is updated during provocative maneuvers. Preliminary results show that trends from classical parameters such as RMSSD and LFn are consistent and reliable instruments capable of providing significant information about ANS fluctuations in a timely fashion.
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388
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Feng CY, Wong S, Dong Q, Bruce J, Mehta R, Bruce WR, O'Brien PJ. Hepatocyte inflammation model for cytotoxicity research: fructose or glycolaldehyde as a source of endogenous toxins. Arch Physiol Biochem 2009; 115:105-11. [PMID: 19485706 DOI: 10.1080/13813450902887055] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Insulin resistance and hepatotoxicity induced in high fructose fed rats may involve fructose derived endogenous toxins formed by inflammation. Thus fructose was seventy-fold more toxic if hepatocytes were exposed to non-toxic levels of hydrogen peroxide (H(2)O(2)) released by inflammatory cells. This was prevented by iron (Fe) chelators, hydroxyl radical scavengers, and increased by Fe, copper (Cu) or catalase inhibition. Fructose or glyceraldehyde/dihydroxyacetone metabolites were oxidized by Fenton radicals to glyoxal. Glyoxal (15 microM) cytotoxicity was increased about 200-fold by H(2)O(2). Glycolaldehyde was enzymically formed from glyceraldehyde, the fructokinase/aldolase B product of fructose. Glycolaldehyde cytotoxicity was increased 20-fold by H(2)O(2). The oxidative stress cytotoxicity induced was attributed to the Fenton oxidation of glycolaldehyde forming glycolaldehyde radicals and glyoxal, since cytotoxicity was prevented by aminoguanidine (glyoxal trap) or Fenton inhibitors. Glyoxal was also the Fenton product responsible for glycolaldehyde protein carbonylation as carbonylation was prevented by aminoguanidine or Fenton inhibitors.
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389
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Wong S, Baltuch GH, Jaggi JL, Danish SF. Functional localization and visualization of the subthalamic nucleus from microelectrode recordings acquired during DBS surgery with unsupervised machine learning. J Neural Eng 2009; 6:026006. [DOI: 10.1088/1741-2560/6/2/026006] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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390
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Wong S. Climate change and sustainable technology: re-linking poverty, gender, and governance. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/13552070802696953] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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391
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Chambers D, Musk M, Wong S, Temple S, Liesfield T, Kermeen F, Hopkins P. 307: A Polymorphism in the Hepatocyte Growth Factor (HGF) Gene Is Associated with Bronchiolitis Obliterans Syndrome (BOS)-Free Survival after Lung Transplantation. J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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392
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Moreno E, Valleca A, Patel J, Kawano M, Lockhart D, Montgomery S, Burch C, Rangel L, Kao T, Kiyosaki K, Wong S, Ankrom A, Ventura L, Kittleson M, Moriguch J, Shao E, Ardehali A, Kobashigawa J. 444: Does High Risk Status Identified by Pre-Transplant Social Worker and Psychiatric Evaluation Predict Outcome after Heart Transplant? J Heart Lung Transplant 2009. [DOI: 10.1016/j.healun.2008.11.451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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393
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Wong S, Carrault G, Kervio G, Cruz J, Bansard JY, Carre F. Application of multiple correspondence analysis to asses the relation between time after transplantation and sympathetic activity in cardiac transplant recipient. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2009; 2008:4403-6. [PMID: 19163690 DOI: 10.1109/iembs.2008.4650187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The aim of the present study was to evidence that the heart reinnervation can occur and it is related with the time after transplantation (evolution with time). Data were evaluated using Multiple Correspondence Analyses (MCA), which is the ideal method to study the relation, probably nonlinear, between the Time After Transplantation (TAT) and the probable restoration of normal heart rate responses of sinus node regulated by the autonomic nervous system. Twenty four nonrejecting transplant recipients (60 +/- 48 months after transplantation) and nine healthy subjects were studied by heart rate variability parameters. Results showed that sympathetic activity is restored some time after transplantation. Until 48 months, the recent HTR are in direct correlation to low values SD and LF and for the oldest transplant recipient, these parameters are similar to that observed in normal subjects.
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394
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Wong S, Lo S. Re: Avoiding a post-nasal pack in adenoidal haemorrhage. Clin Otolaryngol 2009; 33:629; author reply 629. [PMID: 19126146 DOI: 10.1111/j.1749-4486.2008.01808.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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395
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Wong S, Raghavan U. Closure of nasal septal perforation: vertical mattress sutures to approximate bilateral advancement flaps. Clin Otolaryngol 2008. [DOI: 10.1111/j.1749-4486.2008.01843_15.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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396
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Wong S, Lo S. Re: A tonsillectomy assistant. Clin Otolaryngol 2008; 33:500-1. [PMID: 18983397 DOI: 10.1111/j.1749-4486.2008.01807.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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397
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Lourenco T, Armstrong N, N'Dow J, Nabi G, Deverill M, Pickard R, Vale L, MacLennan G, Fraser C, McClinton S, Wong S, Coutts A, Mowatt G, Grant A. Systematic review and economic modelling of effectiveness and cost utility of surgical treatments for men with benign prostatic enlargement. Health Technol Assess 2008; 12:iii, ix-x, 1-146, 169-515. [DOI: 10.3310/hta12350] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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398
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Wang D, Michel M, Campbell B, Massey B, Blumin J, Wong S, Schultz C. High Negative Predictive Value of FDG-PET/CT in Assessment of Tumor Response Following RT of SCCHN. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.1265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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399
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Garden A, Chen A, Curran W, Harari P, Murphy B, Wong S, Schwartz M, Dawson D, Dempsey C, Ang K. Longitudinal Oncology Registry of Head and Neck Carcinoma (LORHAN): Preliminary Report Regarding Radiation Patterns of Care. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.1305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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400
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Wong S, Gandy J. An audit to evaluate the effect of staff training on the use of Malnutrition Universal Screening Tool. J Hum Nutr Diet 2008. [DOI: 10.1111/j.1365-277x.2008.00881_45.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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