Dear Dr. Roach: I have had pernicious anemia for about eight years and must have an injection of vitamin B-12 every three weeks to stay alive. I am also a diabetic for over 10 years, with my A1C ...
IN 1959, Li et al 1 reported a case of pernicious anemia due to the presence of an in vivo intrinsic factor inhibitor, diagnosed in childhood, with a twenty-five-year follow-up. Since then, "defective ...