4Guyatt G, Mitchell A, Irvine EJ, et al. A new measure of health status for clinical trials in inflammatory bowel disease[J]. Gastroenterology,1989,96(3) :804 - 810.
7GUYATT G, MITCHELL A, IRVINE EJ, et al. A new measure of health status for clinical trials in inflammatory bowel disease [J] Gastroenterology, 1989, 96 ( 3 ) 804-810.