Ambareen Jan, BS 

Letters to the Editor
Letters to the Editor
Management of Vitamin B12 Deficiency: What Is the Role of Oral Therapy?
03/17/2011
Ambareen Jan, BS ; R. Dobbin Chow, MD, FACP
Metformin causes malabsorption of vitamin B12 by competitive interference with the calcium-dependent vitamin B12-intrinsic factor complex.
03/17/2011