无编辑摘要
04:12
+5,258
Relative importance and observational studies
16:19
+1,151
13:57
-6,605
Blinding
01:19
-647
Adaptive
00:47
-2,361
Procedures
15:43
-3,822
Randomization
14:57
+1,181
13:29
-2,496
11:18
+16
缺点
00:19
+3
倾向性评分
00:03
00:01
+6
基本设置
00:00
23:58
校对至Formal definitions之前
23:52
+133