Gordon Sheryl A, Fredman Lisa, Orwig Denise L, Alley Dawn E
Epidemiology Department, School of Public Health, Boston University, Boston, Massachusetts.
Department of Epidemiology and Public Health, School of Medicine, University of Maryland, Baltimore, Maryland.
J Am Geriatr Soc. 2013 Dec;61(12):2244-2246. doi: 10.1111/jgs.12572.