Wellman Robert J, O'Loughlin Jennifer
Department of Family Medicine and Community Health, University of Massachusetts Medical School, Worcester, MA, USA.
Department of Social and Preventive Medicine, School of Public Health, ESPUM, University of Montréal, 7101 avenue du Parc, Montréal, QC, H3N 1X9, Canada.
Int J Public Health. 2016 Mar;61(2):149-50. doi: 10.1007/s00038-016-0801-4. Epub 2016 Mar 14.