CEP20/MED18 protein level ratio in blood (OBA_2054260) can be described as follows. A compound attribute that is the ratio of amount of centrosomal protein 20 (human) in blood to amount of mediator of RNA polymerase II transcription subunit 18 (human) in blood. Also known as: the ratio of amount of centrosomal protein 20 (human) in blood to amount of mediator of RNA polymerase II transcription subunit 18 (human) in blood.