共 10 条
[1]
Brown SarahS., 1995, The best intentions: Unintended pregnancy and the well-being of children and families
[4]
FRIEDEN J, 1997, OB GYN NEWS 0715
[7]
HUGHES EC, 1972, OBSTETRIC GYNECOLOGI
[10]
EMERGENCY CONTRACEPTIVE PILLS - A SIMPLE PROPOSAL TO REDUCE UNINTENDED PREGNANCIES
[J].
FAMILY PLANNING PERSPECTIVES,
1992, 24 (06)
:269-273