Vitamin B1 (Thiamine), Plasma Vigabatrin Quantitative, Serum or Plasma Vitamin B1 (Thiamine), Whole Blood Vimentin by Immunohistochemistry Vitamin B12 Viral Culture, Non-Respiratory Vitamin B12 and Folate Viral Culture, Non-Respiratory and Cytomegalovirus Rapid Culture Vitamin B12 Binding Capacity Viral Culture, Respiratory Vitamin B12 Deficiency Panel Varicella-Zoster Virus DFA von Willebrand Disease, Type 2B (VWF) Sequencing von Willebrand Disease, Type 2M (VWF) Sequencing Vitamin B5 (Pantothenic Acid), Serum von Willebrand Disease, Type 2N (VWF) Sequencing Vitamin C (Ascorbic Acid), Plasma von Willebrand Factor Activity (Ristocetin Cofactor) Vitamin D, 1, 25-Dihydroxy von Willebrand Factor Antigen