TY  - RPRT
TI  - Documentation in bronchology.
AU  - A Ernst
AU  - H D Becker
PY  - 2001
DO  - 10.1016/s0272-5231(05)70051-4
UR  - https://pubmed.ncbi.nlm.nih.gov/11444120/
ID  - 11444120
ER  -