TY  - RPRT
TI  - Chronic bronchitis: a five-year follow-up.
AU  - V C MEDVEI
AU  - N C OSWALD
PY  - 1962
DO  - 10.1136/thx.17.1.1
UR  - https://pubmed.ncbi.nlm.nih.gov/14472033/
ID  - 14472033
ER  -