Ontology of Biological Attributes term OBA_2054271 (ANGPT1/EGF protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of angiopoietin-1 (human) in blood to amount of pre-pro-epidermal growth factor (human) in blood. Also known as: the ratio of amount of angiopoietin-1 (human) in blood to amount of pre-pro-epidermal growth factor (human) in blood.