20_15-39-25_ppg 4 1000 29994 20_15-39-25_ppg.dat 32 100.0(0)/au 32 0 -333 1283 0 carotid_880nm 20_15-39-25_ppg.dat 32 100.0(0)/au 32 0 -210 3607 0 carotid_660nm 20_15-39-25_ppg.dat 32 100.0(0)/au 32 0 -223 61751 0 brachial_880nm 20_15-39-25_ppg.dat 32 100.0(0)/au 32 0 -158 63678 0 brachial_660nm