the hazel pollen extract contained at least 40 distinct antigens , two of which were classified as major allergens , antigens 8 and 13 , three as intermediate allergens , antigens 12 , 17 , and 26 , and seven as minor allergens , antigens 6 , 11 , 16 , 18 , 29 , 39 , and 40 .
C0002092
allergens
C0003320
antigens