TY  - RPRT
TI  - Chronic bronchitis, emphysema, and asthma.
AU  - H W HARRIS
PY  - 1963
DO  - 10.2105/ajph.53.suppl_3.7
UR  - https://pubmed.ncbi.nlm.nih.gov/13952928/
ID  - 13952928
ER  -