Não informado. (2002). ACOG Practice Bulletin. American College of Obstetricians and Gynecologists.
Chicago Style (17th ed.) CitationNão informado. ACOG Practice Bulletin. Washington: American College of Obstetricians and Gynecologists, 2002.
MLA (8th ed.) CitationNão informado. ACOG Practice Bulletin. American College of Obstetricians and Gynecologists, 2002.
Warning: These citations may not always be 100% accurate.