blood protein amount blood alpha-fetoprotein amount 2018-06-12T09:38:14Z EFO:0010583 The proportion, quantity, or volume in whole blood, serum, or plasma of the highly abundant plasma protein produced by the yolk sac, liver, and gastrointestinal tract during fetal life and by certain neoplasms in the adult. Trait.ontology VT:0010776 caripark