FCRL1/TREML2 protein level ratio in blood (OBA_2055219) can be described as follows. A compound attribute that is the ratio of amount of Fc receptor-like protein 1 (human) in blood to amount of trem-like transcript 2 protein (human) in blood. Also known as: the ratio of amount of Fc receptor-like protein 1 (human) in blood to amount of trem-like transcript 2 protein (human) in blood.