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In the Middle East and Africa, countries such as Turkey, Saudi Arabia, the UAE, and South Africa are important players
2018, doi:10.1038/s41598-018-36006-x Chen, Tseng-Shing et al
Metformin (a diabetes medicine): Long-term use of metformin can lower Vitamin B12 levels in your body, which may require your doctor to adjust your dose of Folic Acid+l Carnitine+methylcobalamin
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