TY  - RPRT
TI  - [Pulmonary ventilation function in middle-aged and elderly patients with chronic bronchitis].
AU  - O V Korkushko
AU  - L A Ivanov
PY  - 1995
UR  - https://pubmed.ncbi.nlm.nih.gov/7770792/
ID  - 7770792
ER  -