TY  - RPRT
TI  - Pulse oximetry: a practical review.
AU  - C D Hanning
AU  - J M Alexander-Williams
PY  - 1995
DO  - 10.1136/bmj.311.7001.367
UR  - https://pubmed.ncbi.nlm.nih.gov/7640545/
ID  - 7640545
ER  -