@article{Wolf2015, author = {Wolf, D.A. and Freedman, V.A. and Ondrich, J.I. and Seplaki, C.L. and Spillman, B.C. }, title= {Disability trajectories at the end of life: A ‘countdown’ model 745–752. doi:}, year = {2015}, doi = {10.1093/geronb/gbu182}, journal = {The Journals of Gerontology Series B: Psychological Sciences and Social Sciences }, volume = {70}, number = {5}, pages = {745--752}, }