J Biomed Opt. 1997 Apr;2(2):147-53 doi: 10.1117/12.262145.

Quantitative spectroscopic determination of hemoglobin concentration and saturation in a turbid medium: analysis of the effect of water absorption

Franceschini MA, Fantini S, Cerussi AE, Barbieri BB, Chance B, Gratton E.

PMID: 23014867