The elderly who live alone and their social supports.
D000368:Aged / Q000523:psychology*; D003469:Culture; D003710:Demography; D005006:Ethnicity; D005260:Female; D006304:Health Status; D006798:Housing; D006801:Humans; D007182:Income; D008297:Male; D008393:Marriage; D012919:Social Behavior; D012931:Social Environment; D012944:Social Support; D014481:United States