RT Journal Article
SR Electronic
T1 Documentation of Airflow Obstruction Is Essential to Confirm the Diagnosis of COPD: Are Handheld Spirometers in an Office Setting Valid?
JF Respiratory Care
FD American Association for Respiratory Care
SP 429
OP 430
VO 53
IS 4
A1 Dennis E Doherty
YR 2008
UL http://rc.rcjournal.com/content/53/4/429.abstract
AB