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Article |

Approach to a Low Vitamin B12 Level

JAMA. 1994;272(16):1233. doi:10.1001/jama.1994.03520160009003.
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Carmel R.  Subtle and atypical cobalamin deficiency states. Am J Hematol . 1990; 34:108-114.
Link to Article[[XSLOpenURL/10.1002/(ISSN)1096-8652]]
Gaffney GW, Horonick A, Okuda K, Meiar P, Chow BF, Shock NW.  Vitamin B12 serum concentrations in 528 apparently healthy human subjects of ages 12-94. J Gerontol . 1957;12:32-38.
Link to Article[[XSLOpenURL/10.1093/geronj/12.1.32]]
Marcus DL, Shadick N, Crantz J, Gray M, Hernandez F, Freedman ML.  Low serum B12 levels in a hematologically normal elderly subpopulation. J Am Geriatr Soc . 1987;35:635-638.
Carmel R.  Macrocytosis, mild anemia and delay in the diagnosis of pernicious anemia. Arch Intern Med . 1979;139:47-50.
Link to Article[[XSLOpenURL/10.1001/archinte.1979.03630380031013]]
Pennypacker LC, Allen RH, Kelly JP, et al.  High prevalence of cobalamin deficiency in elderly outpatients. J Am Geriatr Soc . 1992;40:1197-1204.
Fairbanks VF, Wahner HW, Phyliky RL.  Tests for pernicious anemia: the 'Schilling test.' Mayo Clin Proc . 1983;58:541-544.
Carmel R, Sinow RM, Siegel ME, Samloff IM.  Food-cobalamin malabsorption occurs frequently in patients with unexplained low serum cobalamin levels. Arch Intern Med . 1988;148:1715-1719.
Link to Article[[XSLOpenURL/10.1001/archinte.1988.00380080019008]]


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