SANAD was an unblinded randomised controlled trial in hospital-based outpatient clinics in the UK.

SANAD在英国医院门诊进行的开放随机对照的实。

Methods To detect the sed occult blood of 200 specimens with both ortho-tolidine method and immunogold method.then analyse the results.

法用邻联甲苯胺和便隐血胶体金检试纸别检200例粪标本进行对照实并析。