Ray, J. G., & Cole, D. E. (2005). Cobalamin deficiency in elderly patients. Canadian Medical Association.
Chicago Stili AlıntıRay, Joel G., ve David E.C Cole. Cobalamin Deficiency in Elderly Patients. Canadian Medical Association, 2005.
MLA AlıntıRay, Joel G., ve David E.C Cole. Cobalamin Deficiency in Elderly Patients. Canadian Medical Association, 2005.
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