title: Characteristics of deceased dropouts in longitudinal research.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008019:Life Style; D008297:Male; D008722:Methods; D008875:Middle Aged; D009026:Mortality; D010549:Personal Satisfaction; D012106:Research; D012649:Self Concept; D014481:United States