A compound attribute that is the ratio of amount of tumor necrosis factor receptor superfamily member EDAR (human) in blood to amount of tumor necrosis factor ligand superfamily member 12 (human) in blood. The trait is EDAR/TNFSF12 protein level ratio in blood (OBA_2055635). Also known as: the ratio of amount of tumor necrosis factor receptor superfamily member EDAR (human) in blood to amount of tumor necrosis factor ligand superfamily member 12 (human) in blood.