A compound attribute that is the ratio of amount of apolipoprotein M (human) in blood to amount of CMRF35-like molecule 9 (human) in blood. The trait is APOM/CD300LG protein level ratio in blood (OBA_2055174). Also known as: the ratio of amount of apolipoprotein M (human) in blood to amount of CMRF35-like molecule 9 (human) in blood.