Preretirement planning in a changing society.
D000223:Adaptation, Psychological; D000368:Aged; D004496:Education, Continuing; D006285:Health Planning; D006801:Humans; D007899:Leisure Activities; D008875:Middle Aged; D012179:Retirement; D012649:Self Concept; D012922:Social Change; D012945:Social Values; D012952:Societies; D014481:United States