eighteen patients affected by itching , urticaria , eczema , angioedema , and asthma related to food-stuff intake were studied and classified in two groups ( true food allergy and pseudoallergy ) on the basis of clinical data , skin prick tests , total and specific ige levels ( prist and rast ) and double-blind challenge test .
C0042109
urticaria
C0002994
angioedema