A compound attribute that is the ratio of amount of bone marrow stromal antigen 2 (human) in blood to amount of coxsackievirus and adenovirus receptor (human) in blood. The trait is BST2/CXADR protein level ratio in blood (OBA_2053162). Also known as: the ratio of amount of bone marrow stromal antigen 2 (human) in blood to amount of coxsackievirus and adenovirus receptor (human) in blood.