Smartphones, social Media and Adolescent mental well-being: the impact of school policies Restricting dayTime use-protocol for a natural experimental observational study using mixed methods at secondary schools in England (SMART Schools Study).
Grace E R WoodVictoria GoodyearPeymane AdabHareth Al-JanabiSally FentonKirsty JonesMaria MichailBreanna MorrisonPaul PattersonAlice J SitchMatthew WadeMiranda PallanPublished in: BMJ open (2023)
ISRCTN77948572.