RT Journal Article SR Electronic T1 Antibiotics for sore throat to prevent rheumatic fever: Yes or No? How the Cochrane Library can help JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 721 OP 723 DO 10.1503/cmaj.1041275 VO 171 IS 7 A1 Arne Ohlsson A1 Kathie Clark YR 2004 UL http://www.cmaj.ca/content/171/7/721.abstract AB