TY  - RPRT
TI  - Pulmonary function testing is needed hospital service.
AU  - J K Freilich
PY  - 1967
DO  - 10.1080/00185868.1967.9950051
UR  - https://pubmed.ncbi.nlm.nih.gov/6045565/
ID  - 6045565
ER  -