Mesalamine for Colorectal Cancer Prevention Programme in Lynch syndrome (MesaCAPP): a multicentre, multinational, randomised, two-arm, double-blind, phase II clinical study with mesalamine or placebo in carriers with Lynch syndrome - a study protocol

美沙拉嗪预防林奇综合征患者结直肠癌项目（MesaCAPP）：一项多中心、多国、随机、双臂、双盲、II期临床研究，比较美沙拉嗪或安慰剂在林奇综合征携带者中的疗效——研究方案