CHRONIC URTICARIA.
D000293:Adolescent; D002648:Child; D005759:Gastroenteritis; D006373:Helminthiasis; D006801:Humans; D011528:Protozoan Infections; D014581:Urticaria
ADOLESCENCE; CHILD; GASTROENTERITIS; HELMINTHIASIS; PROTOZOAN INFECTIONS; URTICARIA