RT Journal Article SR Electronic T1 Office assessment of pulmonary function JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 25 OP 31 VO 47 IS 1 A1 Tomashefskz, Joseph F. A1 Ahmad, Muzaffar A1 Kramer, John A. YR 1980 UL http://www.ccjm.org/content/47/1/25.abstract AB