TY  - RPRT
TI  - [Spiroergometry. Indications, methods, relevance].
AU  - H W Breuer
PY  - 1997
DO  - 10.1055/s-2008-1047636
UR  - https://pubmed.ncbi.nlm.nih.gov/9138923/
ID  - 9138923
ER  -