these techniques include inhibition of antigen-induced histamine release from peripheral blood leukocytes , hemagglutination with allergen coated erythrocytes , radio-allergo-sorbent test ( rast ) , define antigen substrate sphere ( dass ) , antigen binding radioimmuno assay , and more recently , enzyme-linked immunosorbent assays ( elisa ) .
C0002092
allergen
C0003320
antigen