RT Journal Article
SR Electronic
T1 Rebuttal: Should we avoid β-agonists for moderate and severe chronic obstructive pulmonary disease?
JF Canadian Family Physician
JO Can Fam Physician
FD The College of Family Physicians of Canada
SP 1429
OP 1430
VO 53
IS 9
A1 Shelley R. Salpeter
YR 2007
UL http://www.cfp.ca/content/53/9/1429.1.abstract
AB