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Tyler Williamson
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Validating the 8 CPCSSN case definitions for chronic disease surveillance in a primary care database of electronic health records
T Williamson, ME Green, R Birtwhistle, S Khan, S Garies, ST Wong, ...
The Annals of Family Medicine 12 (4), 367-372, 2014
2202014
SeroTracker: a global SARS-CoV-2 seroprevalence dashboard
RK Arora, A Joseph, J Van Wyk, S Rocco, A Atmaja, E May, T Yan, ...
The Lancet Infectious Diseases 21 (4), e75-e76, 2021
2012021
Global seroprevalence of SARS-CoV-2 antibodies: a systematic review and meta-analysis
N Bobrovitz, RK Arora, C Cao, E Boucher, M Liu, C Donnici, ...
PloS one 16 (6), e0252617, 2021
1892021
Registry-based randomized controlled trials-what are the advantages, challenges, and areas for future research?
G Li, TT Sajobi, BK Menon, L Korngut, M Lowerison, M James, SB Wilton, ...
Journal of clinical epidemiology 80, 16-24, 2016
1682016
Emergency medical services response time and mortality in an urban setting
IE Blanchard, CJ Doig, BE Hagel, AR Anton, DA Zygun, JB Kortbeek, ...
Prehospital emergency care 16 (1), 142-151, 2012
1622012
Log-binomial models: exploring failed convergence
T Williamson, M Eliasziw, GH Fick
Emerging themes in epidemiology 10 (1), 1-10, 2013
1432013
Modeling stroke patient transport for all patients with suspected large-vessel occlusion
JK Holodinsky, TS Williamson, AM Demchuk, H Zhao, L Zhu, MJ Francis, ...
JAMA neurology 75 (12), 1477-1486, 2018
1292018
Drip and Ship Versus Direct to Comprehensive Stroke Center: Conditional Probability Modeling.
JK Holodinsky, TS Williamson, N Kamal, D Mayank, MD Hill, M Goyal
Stroke, 2016
1222016
Representativeness of patients and providers in the Canadian Primary Care Sentinel Surveillance Network: a cross-sectional study
JA Queenan, T Williamson, S Khan, N Drummond, S Garies, R Morkem, ...
Canadian Medical Association Open Access Journal 4 (1), E28-E32, 2016
1092016
Prevalence and management of osteoarthritis in primary care: an epidemiologic cohort study from the Canadian Primary Care Sentinel Surveillance Network
R Birtwhistle, R Morkem, G Peat, T Williamson, ME Green, S Khan, ...
CMAJ Open 3 (3), E270-E275, 2015
1012015
The Safety of Yellow Fever Vaccine 17D or 17DD in Children, Pregnant Women, HIV+ Individuals, and Older Persons: Systematic Review
RE Thomas, DL Lorenzetti, W Spragins, D Jackson, T Williamson
The American Journal of Tropical Medicine and Hygiene 86 (2), 359-372, 2012
1002012
Transobturator tape compared with tension-free vaginal tape for stress incontinence: a randomized controlled trial
S Ross, M Robert, C Swaby, L Dederer, D Lier, S Tang, P Brasher, ...
Obstetrics & Gynecology 114 (6), 1287-1294, 2009
992009
Marginal structural models in clinical research: when and how to use them?
T Williamson, P Ravani
Nephrology Dialysis Transplantation 32 (suppl_2), ii84-ii90, 2017
952017
From patient care to research: a validation study examining the factors contributing to data quality in a primary care electronic medical record database
N Coleman, G Halas, W Peeler, N Casaclang, T Williamson, A Katz
BMC family practice 16 (1), 1-8, 2015
902015
Validation of a case definition for depression in administrative data against primary chart data as a reference standard
C Doktorchik, S Patten, C Eastwood, M Peng, G Chen, CA Beck, N Jetté, ...
BMC psychiatry 19, 1-8, 2019
832019
Validation of the diagnostic algorithms for 5 chronic conditions in the Canadian Primary Care Sentinel Surveillance Network (CPCSSN): a Kingston Practice-based Research Network …
A Kadhim-Saleh, M Green, T Williamson, D Hunter, R Birtwhistle
The Journal of the American Board of Family Medicine 26 (2), 159-167, 2013
832013
Active and passive surveillance of yellow fever vaccine 17D or 17DD-associated serious adverse events: systematic review
RE Thomas, DL Lorenzetti, W Spragins, D Jackson, T Williamson
Vaccine 29 (28), 4544-4555, 2011
822011
Prevalence and epidemiology of diabetes in Canadian primary care practices: a report from the Canadian Primary Care Sentinel Surveillance Network
M Greiver, T Williamson, D Barber, R Birtwhistle, B Aliarzadeh, S Khan, ...
Canadian Journal of Diabetes 38 (3), 179-185, 2014
812014
Social support and maternal mental health at 4 months and 1 year postpartum: analysis from the All Our Families cohort
E Hetherington, S McDonald, T Williamson, SB Patten, SC Tough
J Epidemiol Community Health 72 (10), 933-939, 2018
742018
Data resource profile: national electronic medical record data from the Canadian Primary Care Sentinel Surveillance Network (CPCSSN)
S Garies, R Birtwhistle, N Drummond, J Queenan, T Williamson
International Journal of Epidemiology 46 (4), 1091-1092f, 2017
732017
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Articles 1–20