Wang, Linwei and Homayra, Fahmida and Pearce, Lindsay A and Panagiotoglou, Dimitra and McKendry, Rachael and Barrios, Rolando and Mitton, Craig and Nosyk, Bohdan (2019) Identifying mental health and substance use disorders using emergency department and hospital records: a population-based retrospective cohort study of diagnostic concordance and disease attribution. BMJ Open , 9 , (7) , e030530.