alpha-fetoprotein ( afp ) derived from amniotic fluid and both maternal and umbilical cord sera but not from hepatoma , blocks the binding of serum acetylcholine receptor ( achr ) antibody from patients with myasthenia gravis ( mg ) and animals with experimental autoimmune mg ( eamg ) to achr preparations as measured by a radioimmunoassay .
C0026896
myasthenia gravis
C0752087
experimental autoimmune mg