TY  - RPRT
TI  - International comparisons in COPD mortality.
AU  - T J Thom
PY  - 1989
DO  - 10.1164/ajrccm/140.3_pt_2.s27
UR  - https://pubmed.ncbi.nlm.nih.gov/2782757/
ID  - 2782757
ER  -