DescriptionOrder no. Description Quantity MS5013 Serum Calibrator Set, lyophil. for Methylmalonic Acid, Level 0-3 4 x 1 x 2 mL Data Sheet ms5013_1306-1 Order no. Description Quantity MS5013 Serum Calibrator Set, lyophil. for Methylmalonic Acid, Level 0-3 4 x 1 x 2 mL Data Sheet ms5013_1306-1