TY  - RPRT
TI  - Pulmonary function tests: when superfluous, when helpful, when essential?
AU  - G F Filley
PY  - 1966
DO  - 10.1164/arrd.1966.93.2.280
UR  - https://pubmed.ncbi.nlm.nih.gov/5908094/
ID  - 5908094
ER  -