RT Journal Article SR Electronic T1 Progress made in maternal and child health, but challenges remain JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E283 OP E284 DO 10.1503/cmaj.109-3091 VO 181 IS 12 A1 Collier, Roger YR 2009 UL http://www.cmaj.ca/content/181/12/E283.abstract