TY  - RPRT
TI  - Preoperative spirometry: let's do it!
AU  - G N Olsen
PY  - 1984
DO  - 10.1016/s0003-4975(10)64205-1
UR  - https://pubmed.ncbi.nlm.nih.gov/6497486/
ID  - 6497486
ER  -