MING-CHING SHEN2021-05-252021-05-2520080929-6646https://scholars.lib.ntu.edu.tw/handle/123456789/562346[SDGs]SDG2[SDGs]SDG35,10 methylenetetrahydrofolate reductase (FADH2); cyanocobalamin; folic acid; homocysteine; metformin; age; cyanocobalamin deficiency; diabetes mellitus; diet supplementation; dietary intake; drug safety; evidence based medicine; folic acid blood level; folic acid deficiency; gene mutation; genetic association; human; hyperhomocysteinemia; letter; risk factor; thrombosis; treatment durationletter10.1016/S0929-6646(08)60161-82-s2.0-48049088970