TY - CHAP M1 - Book, Section TI - A1 - Posner, Glenn D. A1 - Dy, Jessica A1 - Black, Amanda A1 - Jones, Griffith D. PY - 2015 T2 - Oxorn-Foote Human Labor & Birth, 6e AB - SN - PB - McGraw-Hill Medical CY - New York, NY Y2 - 2024/03/28 UR - obgyn.mhmedical.com/content.aspx?aid=1106375136 ER -