TY  - RPRT
TI  - [Chronic bronchitis (simple, mucopurulent, obstructive)].
AU  - T Satake
AU  - K Takagi
AU  - R Suzuki
PY  - 1994
UR  - https://pubmed.ncbi.nlm.nih.gov/8151984/
ID  - 8151984
ER  -