RT Journal Article SR Electronic T1 Smartphone and social media harms: why we failed in our duty of care JF BMJ JO BMJ FD British Medical Journal Publishing Group SP r658 DO 10.1136/bmj.r658 VO 389 A1 Abbasi, Kamran YR 2025 UL https://www.bmj.com/content/389/bmj.r658.abstract AB