TY  - RPRT
TI  - [Spiro-ergometry in chronic obstructive lung diseases].
AU  - A Somfay
AU  - T Racskó
AU  - P Kraszkó
PY  - 1993
UR  - https://pubmed.ncbi.nlm.nih.gov/8233454/
ID  - 8233454
ER  -