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CHRONIC OBSTRUCTIVE PULMONARY DISEASE: A COMMUNITY-ORIENTED PROGRAM INCLUDING PROFESSIONAL EDUCATION AND SCREENING BY A VOLUNTARY HEALTH AGENCYHEPPER NGG; DRAGE CW; DAVIES SF et al.1980; AMER. REV. RESP. DIS.; USA; DA. 1980; VOL. 121; NO 1; PP. 97-104; BIBL. 10 REF.Article
