A compound attribute that is the ratio of amount of elongin-A (human) in blood to amount of poly [ADP-ribose] polymerase 1 (human) in blood. The trait is Ontology of Biological Attributes entry OBA_2055686 (ELOA/PARP1 protein level ratio in blood). Also known as: the ratio of amount of elongin-A (human) in blood to amount of poly [ADP-ribose] polymerase 1 (human) in blood.