TY  - RPRT
TI  - Predicting 15 year chronic bronchitis mortality in the Whitehall Study.
AU  - K L Ebi-Kryston
PY  - 1989
DO  - 10.1136/jech.43.2.168
UR  - https://pubmed.ncbi.nlm.nih.gov/2592906/
ID  - 2592906
ER  -