APA-viite

Gottlieb, S. (2002). Higher folic acid levels could reduce risk of Alzheimer's disease. BMJ.

Chicago-tyylinen lähdeviittaus

Gottlieb, Scott. Higher Folic Acid Levels Could Reduce Risk of Alzheimer's Disease. BMJ, 2002.

MLA-viite

Gottlieb, Scott. Higher Folic Acid Levels Could Reduce Risk of Alzheimer's Disease. BMJ, 2002.

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