Inflammatory bowel disease in sub-Saharan Africa: a protocol of a prospective registry with a nested case-control study.

Leolin KatsidziraWisdom F MudombiRudo Makunike-MutasaBahtiyar YilmazAnnika BlankGerhard RoglerAndrew MacphersonStephan VavrickaInnocent GangaidzoBenjamin Misselwitz

Published in: BMJ open (2020)

NCT04178408.

Keyphrases

randomized controlled trial
case control
ulcerative colitis