Quantifying the correlation between photoplethysmography and laser Doppler flowmetry microvascular low-frequency oscillations.
Mizeva I, Di Maria C, Frick P, Podtaev S, Allen J. Quantifying the correlation between photoplethysmography and laser Doppler flowmetry microvascular low-frequency oscillations. J Biomed Opt. 2015 03; 20(3):037007.