TY  - RPRT
TI  - A WHISTLE FOR TESTING LUNG FUNCTION.
AU  - E F DEBONO
PY  - 1963
DO  - 10.1016/s0140-6736(63)90796-7
UR  - https://pubmed.ncbi.nlm.nih.gov/14072917/
ID  - 14072917
ER  -