A compound attribute that is the ratio of amount of CD166 antigen (human) in blood to amount of intercellular adhesion molecule 3 (human) in blood. The trait is OBA_2054294 (ALCAM/ICAM3 protein level ratio in blood). Also known as: the ratio of amount of CD166 antigen (human) in blood to amount of intercellular adhesion molecule 3 (human) in blood.