RT Journal Article SR Electronic T1 Parvovirus B19 infection: fifth disease and more JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 743 OP 743 DO 10.1503/cmaj.045293 VO 172 IS 6 A1 Erica Weir YR 2005 UL http://www.cmaj.ca/content/172/6/743.abstract AB