Cart Remove item Thumbnail image Product Price Quantity Subtotal × Nitrotyrosin (EDTA-Plasma, Serum) $1,315.00 Nitrotyrosin (EDTA-Plasma, Serum) quantity $1,315.00 × Niacin Assay Kit $1,235.00 Niacin Assay Kit quantity $1,235.00 Update cart Cart totals Subtotal $2,550.00 Tax $0.00 Total $2,550.00 Proceed to checkout