Social inequalities in health in Montreal : progress to date : 2011 report of the director of public health : synthesis report / [research and manuscript development, Marie-France Le Blanc, Marie-France Raynault, Richard Lessard ; planning, research, data processing and analysis, Health Surveillance in Montréal Sector ; analysis and writing, Carl Drouin ... et al. ; contributors, Robert Bastien ... et al. ; scientific supervision and coordination, Marie-France Raynault ; translation, Sylvie Gauthier]