RT Journal Article SR Electronic T1 Bacterial vaginosis: more questions than answers JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 448 OP 448 DO 10.1503/cmaj.1041174 VO 171 IS 5 A1 Erica Weir YR 2004 UL http://www.cmaj.ca/content/171/5/448.abstract