About the Authors

Melissa Kimber

Affiliation Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada

Jürgen Rehm

Affiliations Social and Epidemiological Research Department, Centre for Addiction and Mental Health, Toronto, Canada, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada, PAHO/WHO Collaborating Centre for Mental Health & Addiction, Toronto, Ontario, Canada, Klinische Psychologie and Psychotherapie, Technische Universität Dresden, Dresden, Germany

Mark A. Ferro

ferroma@mcmaster.ca

Affiliations Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada, Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, Ontario, Canada, Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MF. Analyzed the data: MK MF. Contributed reagents/materials/analysis tools: MK MF. Wrote the paper: MK JR MF.