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Journal Article Personality Traits in the Mentally-Impaired Aged and Their Relationship to Improvements in Current Functioning Get access Morton H. Kleban, PhD, Morton H. Kleban, PhD Search for other works by this author on: Oxford Academic PubMed Google Scholar Elaine M. Brody, MSSA, Elaine M. Brody, MSSA Search for other works by this author on: Oxford Academic PubMed Google Scholar M. Powell Lawton, PhD M. Powell Lawton, PhD Search for other works by this author on: Oxford Academic PubMed Google Scholar The Gerontologist, Volume 11, Issue 2Part₁, Summer 1971, Pages 134–140, https: //doi. org/10. 1093/geront/11. 2Part₁. 134 Published: 01 July 1971
Kleban et al. (Tue,) studied this question.