Ola Niewiadomski

Environmental risk factors in inflammatory bowel disease: a population-based case-control study in Asia-Pacific

Siew C. Ng, Whitney Tang, Rupert W. Leong et al. · Gut · 2014 · 444 citations · Full text

Public Health, Health Sciences, Population Health Sciences +16

Population Density and Risk of Inflammatory Bowel Disease: A Prospective Population-Based Study in 13 Countries or Regions in Asia-Pacific

Siew C. Ng, Gilaad G. Kaplan, Whitney Tang et al. · The American Journal of Gastroenterology · 2018 · 262 citations

Public Health, Population Health Sciences, Urban Health +16

Early Course of Inflammatory Bowel Disease in a Population-Based Inception Cohort Study From 8 Countries in Asia and Australia

Siew C. Ng, Zhirong Zeng, Ola Niewiadomski et al. · Gastroenterology · 2015 · 115 citations · Full text

Medicine, Health Sciences, Epidemiology +12

Incidence and initial disease course of inflammatory bowel diseases in 2011 in Europe and Australia: Results of the 2011 ECCO-EpiCom inception cohort

Zsuzsanna Végh, Johan Burisch, Natalia Pedersen et al. · Journal of Crohn s and Colitis · 2014 · 105 citations · Full text

Medicine, Health Sciences, Clinical Epidemiology +10

Prospective population‐based cohort of inflammatory bowel disease in the biologics era: Disease course and predictors of severity

Ola Niewiadomski, Corrie Studd, Jarrad Wilson et al. · Journal of Gastroenterology and Hepatology · 2015 · 97 citations

Medicine, Clinical Sciences, Immunology +12