Boswellia serrata extract for the treatment of collagenous colitis. A double-blind, randomized, placebo-controlled, multicenter trial.
Madisch A, Miehlke S, Eichele O, Mrwa J, Bethke B, Kuhlisch E, Bästlein E, Wilhelms G, Morgner A, Wigginghaus B, et al. Int J Colorectal Dis. 2007 Dec; 22(12):1445-51. Epub 2007 Sep 2.