1. Guidelines for perinatal care;American Academy of Pediatrics and American College of Obstetricians and Gynecologists,2002
2. The millionth circle: How to change ourselves and the world;Bolin,1999
3. CenteringPregnancy: A model for group prenatal care;CenteringPregnancy and Parenting Association,2002
4. Antepartum: Management of normal pregnancy;Cunningham,1997
5. Screening for abuse: Barriers and opportunities;D’Avolio;Health Care of Women International,2001