The Acusera multianalyte liquid tumor marker control covers a total of 15 commonly tested and esoteric cancer antigens and tumor markers. Assayed target values can help laboratories monitor both accuracy and precision. The liquid stable nature reduces the need for reconstitution and the amount of human handling necessary; it also allows the material to be shipped and stored at 2–8°C. The serum is 100% human in origin, providing a matrix similar to the patient sample but also both reducing antibody interference and the possibility of control values shifting after changing reagent batch.