RT Journal Article SR Electronic T1 Using education to improve control of asthma in children JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 248 OP 249 DO 10.1503/cmaj.091120 VO 181 IS 5 A1 Christopher Cates YR 2009 UL http://www.cmaj.ca/content/181/5/248.abstract