%0 Journal Article %T Do changes in effort-reward imbalance at work contribute to an explanation of the social gradient in angina? %A Chandola, T %A Siegrist, J %A Marmot, M %J Occupational and Environmental Medicine %V 62 %N 4 %P 223-230 %@ 1351-0711 %D 2005-04-18 %I BMJ Publishing Group Ltd %~ DeepDyve