TY - JOUR T1 - Closing the therapeutic gap in patients with low vitamin B12 levels JF - Clinical Medicine JO - Clin Med SP - 190 LP - 190 DO - 10.7861/clinmedicine.12-2-190 VL - 12 IS - 2 AU - Linda JE Walker Y1 - 2012/04/01 UR - http://www.rcpjournals.org/content/12/2/190.abstract ER -