The effect of the Ontario Bariatric Network on health services utilization after bariatric surgery: a retrospective cohort study

Department of Surgery (Elnahas, Jackson, Okrainec, Urbach), Department of Medicine (Bell) and Institute of Health Policy, Management and Evaluation (Elnahas, Austin, Bell, Urbach), University of Toronto; Institute for Clinical Evaluative Sciences (Austin, Urbach), Toronto, Ont.

Department of Surgery (Elnahas, Jackson, Okrainec, Urbach), Department of Medicine (Bell) and Institute of Health Policy, Management and Evaluation (Elnahas, Austin, Bell, Urbach), University of Toronto; Institute for Clinical Evaluative Sciences (Austin, Urbach), Toronto, Ont.

Department of Surgery (Elnahas, Jackson, Okrainec, Urbach), Department of Medicine (Bell) and Institute of Health Policy, Management and Evaluation (Elnahas, Austin, Bell, Urbach), University of Toronto; Institute for Clinical Evaluative Sciences (Austin, Urbach), Toronto, Ont.

Department of Surgery (Elnahas, Jackson, Okrainec, Urbach), Department of Medicine (Bell) and Institute of Health Policy, Management and Evaluation (Elnahas, Austin, Bell, Urbach), University of Toronto; Institute for Clinical Evaluative Sciences (Austin, Urbach), Toronto, Ont.

Department of Surgery (Elnahas, Jackson, Okrainec, Urbach), Department of Medicine (Bell) and Institute of Health Policy, Management and Evaluation (Elnahas, Austin, Bell, Urbach), University of Toronto; Institute for Clinical Evaluative Sciences (Austin, Urbach), Toronto, Ont.

Department of Surgery (Elnahas, Jackson, Okrainec, Urbach), Department of Medicine (Bell) and Institute of Health Policy, Management and Evaluation (Elnahas, Austin, Bell, Urbach), University of Toronto; Institute for Clinical Evaluative Sciences (Austin, Urbach), Toronto, Ont.