Vitamin B12 Deficiency - Video Tutorial #1www.Food-xpert.com www.the-Diet-Doctor.comB12 Deficiency is very common. B12 vitamins Video Tutorial #1 explains what Vitamin B12 is, why B12...
December 12, 2007 presentation by David Feldman for the Stanford School of Medicine Medcast lecture series. David Feldman, MD, professor of medicine at Stanford, explores...