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Table 4 Assignment of the in the systematic review included studies to the four population groups [39, 40, 46, 48, 49, 54]

From: Vitamin B—Can it prevent cognitive decline? A systematic review and meta-analysis

  1. Dark blue = primary outcome; light blue = secondary outcomes
  2. *Included in meta-analysis
  3. +Use of multivitamin formula
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Systematic Reviews

ISSN: 2046-4053