title: [A developmental study on the self-concept in old age: self-classification by the aged as old or not old].
authors.forename: Kunimitsu
authors.initials: K
authors.lastname: Moriya
mesh_terms: D000223:Adaptation, Psychological / Q000502:physiology*; D000368:Aged / Q000523:psychology*; D000375:Aging / Q000523:psychology*; D004532:Ego; D006801:Humans; D007062:Identification, Psychological; D012649:Self Concept