Article

Ohaeri, Columbus and Farr, Ian and Bailey, Grace and Evans, Hywel Turner and Phillips, Ryan and Oluwasuji, Olabambo and Dixon, Josh and Smith, Josie (2025) Enhancing opportunities to reduce escalation to substance use disorders through early engagement: a retrospective observational data linkage study of primary and secondary care in Wales. BMJ Public Health , 3 , (2) .