共 28 条
[1]
Angrist JD, 1996, J AM STAT ASSOC, V91, P444, DOI 10.2307/2291629
[2]
[Anonymous], UNDERSTANDING HLTH C
[4]
Chen Q, 2000, INQUIRY-J HEALTH CAR, V37, P359
[6]
D'Agostino RB, 1998, STAT MED, V17, P2265, DOI 10.1002/(SICI)1097-0258(19981015)17:19<2265::AID-SIM918>3.0.CO
[7]
2-B