title: Commentary on "Research Design in End-of-Life Research: State of Science".
authors.affiliation: Institute for Studies on Aging, New England Research Institutes, Watertown, MA 02472, USA. sharont@neri.org
authors.forename: Sharon L
authors.initials: SL
authors.lastname: Tennstedt
mesh_terms: D015897:Comorbidity; D018864:Cultural Diversity; D003627:Data Interpretation, Statistical; D015987:Effect Modifier, Epidemiologic; D006801:Humans; D012107:Research Design; D013727:Terminal Care