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Branicki FJ, Coleman SY, Fok PJ, Pritchett CJ, Fan ST, Lai EC, Mok FP, Cheung WL, Lau PW, Tuen HH, et al
Bleeding peptic ulcer: a prospective evaluation of risk factors for rebleeding and mortality
World J Surg. 1990 Mar-Apr;14(2):262-9