共 29 条
[1]
Akman MA, 1996, HUM REPROD, V11, P1013
[4]
Bredkjær HE, 1999, HUM REPROD, V14, P101
[9]
JOHNSON NP, 2004, COCHRANE DB SYST REV, V3, DOI DOI 10.1002/14651858.CD002125.PUB2