TY  - RPRT
TI  - [Evolution in research on chronic bronchitis].
AU  - A I Zhiugzhda
AU  - M A Staponkene
AU  - R I Piatkiavichene
AU  - V I Bal'chius
PY  - 1995
UR  - https://pubmed.ncbi.nlm.nih.gov/8691804/
ID  - 8691804
ER  -