共 50 条
- [2] The Pregnancy Risk Assessment Monitoring System (PRAMS) JOURNAL OF WOMENS HEALTH, 1998, 7 (07): : 799 - 801
- [7] Observations from the CDC - Pregnancy Risk Assessment Monitoring System (PRAMS): Unintended pregnancy among women having a live birth JOURNAL OF WOMENS HEALTH & GENDER-BASED MEDICINE, 1999, 8 (05): : 587 - 589