PT - JOURNAL ARTICLE ED - , TI - Update on the evidence for oral B<sub>12</sub> supplements to treat deficiency AID - 10.1136/dtb.2018.000057 DP - 2019 Jan 01 TA - Drug and Therapeutics Bulletin PG - 9--9 VI - 57 IP - 1 4099 - http://dtb.bmj.com/content/57/1/9.short 4100 - http://dtb.bmj.com/content/57/1/9.full SO - Drug Ther Bull2019 Jan 01; 57