Flow diagram of study selection processCAB: Commonwealth Agricultural Bureau

Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

Summary of Intervention Studies Evaluating the

Effect of B Vitamins on Neurocognitive Outcomes

Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

Effect of Pyridoxine Hydrochloride (Vitamin B6) Intervention on Cognitive Function Tests

Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

Effect of Cyanocobalamin or Hydroxycobalamin (Vitamin B12) Intervention

on Cognitive Function Tests in Randomized Controlled Trials – Part I

Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

Effect of Cyanocobalamin or Hydroxycobalamin (Vitamin B12) Intervention

on Cognitive Function Tests in Randomized Controlled Trials – Part II

Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

Effect of Folic Acid Intervention on Cognitive Function Tests

Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

Effect of Combination

Interventions on Cognitive

Function

Part I

Eth

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Effect of Combination

Interventions on Cognitive

Function

Part II

Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30