RT Journal Article SR Electronic T1 Must family physicians use spirometry in managing asthma patients? JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 127 OP 129 VO 56 IS 2 A1 Anthony D. D’Urzo YR 2010 UL http://www.cfp.ca/content/56/2/127.abstract AB