RT Journal Article SR Electronic T1 Spirometry in primary care practices JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 430 OP 430 DO 10.1503/cmaj.1090001 VO 180 IS 4 A1 Matthew B. Stanbrook, MD PhD A1 Alan Kaplan MD YR 2009 UL http://www.cmaj.ca/content/180/4/430.abstract