A compound attribute that is the ratio of amount of CD40 ligand (human) in blood to amount of tumor necrosis factor receptor superfamily member EDAR (human) in blood. The trait is OBA_2054207 (CD40LG/EDAR protein level ratio in blood). Also known as: the ratio of amount of CD40 ligand (human) in blood to amount of tumor necrosis factor receptor superfamily member EDAR (human) in blood.