RT Journal Article SR Electronic T1 Elective cesarean section JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 13 OP 14 DO 10.1503/cmaj.1040497 VO 171 IS 1 A1 Penny L. Lindballe YR 2004 UL http://www.cmaj.ca/content/171/1/13.3.abstract