title: Comparison of ascorbic acid concentrations in whole blood obtained by venipuncture or by finger prick.
mesh_terms: D001205:Ascorbic Acid / Q000097:blood*; D001793:Blood Preservation; D004140:Dinitrophenols; D004355:Drug Stability; D004356:Drug Storage; D005385:Fingers; D006801:Humans; D006834:Hydrazines; D011677:Punctures; D014680:Veins
chemical_list: D004140:Dinitrophenols; D006834:Hydrazines; D001205:Ascorbic Acid