Support systems of widows in the Chicago area.
D000328:Adult; D000367:Age Factors; D000368:Aged; D002641:Chicago; D002648:Child; D004651:Employment; D005006:Ethnicity; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007182:Income; D008019:Life Style; D008875:Middle Aged; D012847:Single Person; D012917:Social Adjustment; D012919:Social Behavior; D012922:Social Change; D012943:Social Security; D012946:Social Welfare; D012951:Socialization