Smartphone-Based Self-Monitoring in First Episode Psychosis: Mixed-Methods Study of Barriers and Facilitators to Engagement. - Del Piccolo, Maria Chiara; Hammoud, Ryan; Khan, Maisie; D'Costa, Vanessa Shanon; Almuqrin, Aljawharah; Georgiades, Anna; Tognin, Stefania; Mechelli, Andrea (Journal of Medical Internet Research, 2025)