Prospective multicenter clinical trial
Multi center clinical trial
multi-center clinical trial
Multicenter randomized controlled clinical trial
Multicenter clinical research
Multicenter clinical study
Multicenter-clinical trials
Multicenter clinical trail
Multicenter clinical trials
applications of clinical trial
Bias and variability of a clinical trial
clinical trial
人体试验
临床评价
临床试验
临床实验
光敏剂
应用
医疗器材
临床观察
I期临床试验
临床治疗
骨密度
对比
临床研究
药物临床试验
随机对照临床试验
临床验证
临床应用
诊治试验
临床试验大样本
clinical trial and evaluation
clinical trial nurse CTN
clinical trial phase II design
clinical trial registration