TY  - RPRT
TI  - The bronchoscopy survey. Some reflections.
AU  - U B Prakash
AU  - S E Stubbs
PY  - 1991
DO  - 10.1378/chest.100.6.1660
UR  - https://pubmed.ncbi.nlm.nih.gov/1959411/
ID  - 1959411
ER  -