A compound attribute that is the ratio of amount of cytotoxic and regulatory T-cell molecule (human) in blood to amount of granzyme A (human) in blood. The trait is OBA_2054507 (CRTAM/GZMA protein level ratio in blood). Also known as: the ratio of amount of cytotoxic and regulatory T-cell molecule (human) in blood to amount of granzyme A (human) in blood.