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Flow diagram of study selection process CAB: Commonwealth Agricultural Bureau Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30.

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Presentation on theme: "Flow diagram of study selection process CAB: Commonwealth Agricultural Bureau Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30."— Presentation transcript:

1 Flow diagram of study selection process CAB: Commonwealth Agricultural Bureau Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

2 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

3 Effect of Pyridoxine Hydrochloride (Vitamin B 6 ) Intervention on Cognitive Function Tests Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

4 Effect of Cyanocobalamin or Hydroxycobalamin (Vitamin B 12 ) Intervention on Cognitive Function Tests in Randomized Controlled Trials – Part I Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

5 Effect of Cyanocobalamin or Hydroxycobalamin (Vitamin B 12 ) Intervention on Cognitive Function Tests in Randomized Controlled Trials – Part II Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

6 Effect of Folic Acid Intervention on Cognitive Function Tests Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

7 Effect of Combination Interventions on Cognitive Function Part I Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30

8 Effect of Combination Interventions on Cognitive Function Part II Ethan M. Balk, et al. Arch Intern Med. 2007;167:21-30


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