共 63 条
[4]
[Anonymous], 2005, WHO STAT HORM CONTR
[5]
[Anonymous], 1986, N ENGL J MED, V315, P405
[6]
Benshushan A, 2002, EUR J OBSTET GYN R B, V105, P166
[7]
Black Amanda, 2004, J Obstet Gynaecol Can, V26, P347
[9]
Black Amanda, 2004, J Obstet Gynaecol Can, V26, P219
[10]
Black Amanda, 2004, J Obstet Gynaecol Can, V26, P143

