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In a study of healthy subjects grouped by age (Younger: 19-50 years, Seniors: 65-75 years, and Longeval: 85-102 years), Herrmann et al. (A-8) measured their
In a study of healthy subjects grouped by age (Younger: 19-50 years, Seniors: 65-75 years, and Longeval: 85-102 years), Herrmann et al. (A-8) measured their vitamin B-12 levels (ng/L). All elderly subjects were living at home and able to carry out normal day-to-day activities. The table shows vitamin B-12 levels for 50 subjects in the young group, 92 seniors, and 90 subjects in the longeval group.
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