共 21 条
[1]
[Anonymous], CLIN CALCULATOR 1 OB
[6]
Lo Evelyn, 2008, Infect Control Hosp Epidemiol, V29 Suppl 1, pS41, DOI 10.1086/591066
[8]
Newcombe RG, 1998, STAT MED, V17, P857, DOI 10.1002/(SICI)1097-0258(19980430)17:8<857::AID-SIM777>3.0.CO
[9]
2-E