TY - JOUR AU - Committee on Obstetric Practice TI - ACOG committee opinion. Exercise during pregnancy and the postpartum period. Number 267, January 2002. American College of Obstetricians and Gynecologists JO - Int J Gynaecol Obstet VL - 77 PY - 2002 DO - 10.1016/S0020-7292(02)80004-2 SP - 79 EP - 81 ER -