Urticaria pigmentosa in children.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D006632:Histamine; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008407:Mast Cells; D014582:Urticaria Pigmentosa
D006632:Histamine