title: Blood and urinary heparin and N-acetylneuraminic acid in children with urticaria pigmentosa.
mesh_terms: D002675:Child, Preschool; D006493:Heparin / Q000378:metabolism*; D006801:Humans; D007223:Infant; D008407:Mast Cells / Q000378:metabolism; D012794:Sialic Acids / Q000378:metabolism*; D012867:Skin / Q000473:pathology; D014582:Urticaria Pigmentosa / Q000378:metabolism*
chemical_list: D012794:Sialic Acids; D006493:Heparin