APA-čujuhus (7. p.)

Smith, A. (2002). Homocysteine, B vitamins, and cognitive deficit in the elderly.

Chicago-čujuhus (17. p.)

Smith, A. Homocysteine, B Vitamins, and Cognitive Deficit in the Elderly. 2002.

MLA-čujuhus (9. p.)

Smith, A. Homocysteine, B Vitamins, and Cognitive Deficit in the Elderly. 2002.

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