潰瘍性結(jié)腸類(lèi)與結(jié)腸和直腸的多發(fā)性腺癌的發(fā)生率增高有聯(lián)系.Ulcertitive colitis is associated with an incidence of multiple adenocarcinomas of the colon and rectum.使用促性腺激素有一定風(fēng)險(xiǎn), 費(fèi)用和不便.Use of gonadotropins may involve a amount of risk, expense, and inco...