Increasing physical activity using an just-in-time adaptive digital assistant supported by machine learning: A novel approach for hyper-personalised mHealth interventions. - Corneel Vandelanotte; Stewart Trost; Danya Hodgetts; Tasadduq Imam; Md. Mamunur Rashid 001; Quyen G. To; Carol Maher (J. Biomed. Informatics, 2023)