TY - RPRT TI - Validity of Optical Heart Rate Measurement in Commercially Available Wearable Fitness Tracking Devices AU - Thomas, J. AU - Doyle, P. AU - Doyle, A. PY - 2022 DO - 10.1101/2022.09.29.510075 UR - https://www.biorxiv.org/content/10.1101/2022.09.29.510075v1 ID - 10.1101/2022.09.29.510075 ER -