RT Journal Article SR Electronic T1 Pediatric clinical trials registry JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1159 OP 1160 DO 10.1503/cmaj.1050001 VO 172 IS 9 A1 Bonati, Maurizio A1 Pandolfini, Chiara A1 , YR 2005 UL http://www.cmaj.ca/content/172/9/1159.abstract