The merits of conducting clinical trials for doctors. (KUHP, n = 301; SNUH, n = 398). In Question #8 “What do you think are the merits of conducting clinical trials?”, the participants were asked to rate nine items by how strongly they agree using the following 4-tier scale: strongly agree, agree, partially agree, and disagree. The proportion of doctors responding as “strongly agree and agree” and “partially agree and disagree” in each institution was compared. 301 doctors at KUHP and 398 doctors at SNUH responded to the question.