RT Journal Article SR Electronic T1 Massive Vitamin B12 Therapy in Pernicious Anemia JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 166 OP 168 VO 17 IS 3 A1 Donald W. Bortz A1 John D. Battle, Jr. YR 1950 UL http://www.ccjm.org/content/17/3/166.abstract AB