TY  - RPRT
TI  - [Impaired lung function in patients with moderate chronic obstructive bronchitis].
AU  - V B Nefedov
AU  - L A Popova
AU  - E A Shergina
PY  - 2004
UR  - https://pubmed.ncbi.nlm.nih.gov/15719666/
ID  - 15719666
ER  -