title: Widows in the United States.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D003643:Death; D005260:Female; D006801:Humans; D008393:Marriage; D008875:Middle Aged; D012847:Single Person; D012959:Socioeconomic Factors; D014481:United States