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Serum vitamin B12 concentrations within reference values do not exclude functional vitamin B12 deficiency in PKU

Inge Vugteveen1, Marieke Hoeksma, Anne-Lise Bjorke Monsen

  • 1Section of Metabolic Diseases, Beatrix Children's Hospital, University Medical Centre of Groningen, University of Groningen, Groningen, The Netherlands.

Abstract

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