Oral contraceptives, reproductive factors and risk of inflammatory bowel disease
Hamed Khalili, Leslie M Higuchi, Ashwin N Ananthakrishnan, James M Richter, Diane Feskanich, Charles S Fuchs, Andrew T Chan
Gut Aug 2013, 62 (8) 1153-1159; DOI: 10.1136/gutjnl-2012-302362
