00391nas a2200145   4500000000100000008004100001100001200042700001900054700001100073700001300084700001300097700001500110245011400125490000600239       2013                            d1 aLear S.1 aSubramanian S.1 aTeo K.1 aCorsi D.1 aBoyle M.1 aChow Clara00aSocioeconomic and geographic patterning of smoking behaviour in Canada: a cross-sectional multilevel analysis0 v8