TY  - RPRT
TI  - [Recommendations for implementing bronchial provocation tests with pharmacologic substances. German Society of Pneumology--Scientific "Bronchial Provocation Tests" Study Group].
AU  - G Klein
PY  - 1997
DO  - 10.1007/bf03044912
UR  - https://pubmed.ncbi.nlm.nih.gov/9340468/
ID  - 9340468
ER  -