A compound attribute that is the ratio of amount of granzyme A (human) in blood to amount of lymphotoxin-alpha (human) in blood. The trait is GZMA/LTA protein level ratio in blood (OBA_2053120, an Ontology of Biological Attributes entry). Also known as: the ratio of amount of granzyme A (human) in blood to amount of lymphotoxin-alpha (human) in blood.