Michalis Kassinopoulos Georgios D. Mitsis Physiological noise modeling in fMRI based on the pulsatile component of photoplethysmograph. 118467 2021 242 NeuroImage https://doi.org/10.1016/j.neuroimage.2021.118467 db/journals/neuroimage/neuroimage242.html#KassinopoulosM21