TY  - RPRT
TI  - Simple instrument for evaluating pulmonary ventilatory function.
AU  - R I WANG
AU  - R E SHIPLEY
PY  - 1958
DO  - 10.1001/jama.1958.72990310001007
UR  - https://pubmed.ncbi.nlm.nih.gov/13563172/
ID  - 13563172
ER  -