00000cam a22000004a 4500 UP-1685523046125073374 Buklod 20230503092606.0 m o j ta 991231s1982 xx r |||| u|eng|| 9289011033 (iLib)UPMNL-00000017722 RA645 L8 Florey, Charles du V. Methods for cohort studies of chronic airflow limitation C. du V. Florey and S.R. Leeder. Chronic airflow limitation Copenhagen World Health Organization, Regional Office for Europe c1982 vi, 134 p. ill. 25 cm. Spine title: Chronic airflow limitation. Cohort analysis Methodology. Lungs Diseases, Obstructive Epidemiology Methodology. Leeder, S. R. CPH-11037 UPMNL CPH RA645 L8 Book