TY  - RPRT
TI  - Pulmonary function testing: custom programs for manual equipment.
AU  - M F Petrini
PY  - 1984
DO  - 10.1016/0010-4825(84)90020-9
UR  - https://pubmed.ncbi.nlm.nih.gov/6546910/
ID  - 6546910
ER  -