RT Journal Article SR Electronic T1 Opt-out prenatal HIV testing in Newfoundland and Labrador JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 630 OP 631 VO 167 IS 6 A1 Kathleen Steel O'Connor A1 Susan E. MacDonald YR 2002 UL http://www.cmaj.ca/content/167/6/630.3.abstract