Identification of physical activity and sedentary behaviour dimensions that predict mortality risk in older adults: Development of a machine learning model in the Whitehall II accelerometer sub-study and external validation in the CoLaus study. - Chen M; Landré B; Marques-Vidal P; van Hees VT; van Gennip ACE; Bloomberg M; Yerramalla MS; Benadjaoud MA; Sabia S (EClinicalMedicine, 2022)