TY  - BOOK
AU  - Florey, Charles du V.
AU  - Leeder, S.R.
TI  - Methods for cohort studies of chronic airflow limitation
SN  - 9289011033
U1  - WF 600 MET 
PY  - 1982///
CY  - Copenhagen
PB  - World Health Organization, Regional Office for Europe Copenhagen
KW  - Data collection
KW  - methods
KW  - Lung diseases, Obstructive
KW  - epidemiology
ER  -