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Journal Article Textbook of Geriatric Medicine and Gerontology Get access Textbook of Geriatric Medicine and Gerontology, edited by J. C. Brocklehurst. Longman, New York, 1973, 760 pages, 55. 00. Herman T. Blumenthal, PhD, MD Herman T. Blumenthal, PhD, MD Dept. of Psychology, Washington Univ. Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Gerontology, Volume 29, Issue 5, September 1974, Page 589, https: //doi. org/10. 1093/geronj/29. 5. 589 Published: 01 September 1974
H. T. Blumenthal (Sun,) studied this question.