@article{Johnson2000, author = {Johnson, N.J. and Backlund, E. and Sorlie, P.D. and Loveless, C.A.}, title= {Marital status and mortality: The national longitudinal mortality study}, year = {2000}, doi = {10.1016/S1047-2797(99)00052-6}, volume = {10}, number = {4}, pages = {224--238}, }