共 36 条
[2]
Altman DG, 2000, STAT MED, V19, P453, DOI 10.1002/(SICI)1097-0258(20000229)19:4<453::AID-SIM350>3.3.CO
[3]
2-X
[8]
Bender R, 1996, BMJ-BRIT MED J, V313, P628
[10]
Carpenter J, 2000, STAT MED, V19, P1141, DOI 10.1002/(SICI)1097-0258(20000515)19:9<1141::AID-SIM479>3.0.CO