immunoelectrophoresis of the culture fluid after incubation , using rabbit antisera against human and rat fetal serum proteins , followed by radioautography revealed that : 1 ) radioactive alpha-fetoprotein was present in cultures of human liver , rat liver , and rat yolk sac , but not in cultures of human or rat brain , lung , heart , kidney , intestines , skeletal muscle , skin , or placenta ;
C0002210
alpha-fetoprotein
C0086418
human