Clinical Gastroenterology and Hepatology · 2008 · 60 citations · 9 references
MedicineClinical SciencesInternal MedicineGastroenterologyColonic DiseasesColonic DisordersGastrointestinal InflammationInflammatory Bowel DiseaseInflammatory Bowel Disease CareAcute Severe Ulcerative ColitisChronic ColitisClinical RemissionUlcerative Colitis Pathology
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Course of ulcerative colitis: Analysis of changes in disease activity over years
Ebbe Langholz, Pia Munkholm, Michael Davidsen et al. · Gastroenterology · 1994 · 703 citations
Channeling bias in the interpretation of drug effects
H. Petri, John Urquhart · Statistics in Medicine · 1991 · 243 citations