Double blind, placebo controlled trial of metronidazole in Crohn's disease.
Sutherland L, Singleton J, Sessions J, Hanauer S, Krawitt E, Rankin G, Summers R, Mekhjian H, Greenberger N, Kelly M, et al. Double blind, placebo controlled trial of metronidazole in Crohn's disease. Gut. 1991 Sep; 32(9):1071-5.