TY - GEN AU - Dosman,J A AU - Chong,P AU - Cotton,D J TI - Detection of peripheral airways obstruction in smokers using air vs. helium spirometry SN - 0395-3890 PY - 1979///1128 KW - Aging KW - Air KW - Airway Obstruction KW - diagnosis KW - Female KW - Forced Expiratory Flow Rates KW - Helium KW - Humans KW - Male KW - Smoking KW - physiopathology KW - Spirometry KW - methods N1 - Publication Type: Journal Article ER -