title: Letters to the Editor.
authors.forename: Eli
authors.initials: E
authors.lastname: Magen
authors.forename: I Kuznik
authors.initials: IK
authors.lastname: Boris
mesh_terms: D015415:Biomarkers; D006801:Humans; D019798:Neopterin / Q000097:blood / Q000378:metabolism*; D011379:Prognosis; D065631:Rhinitis, Allergic / Q000175:diagnosis* / Q000276:immunology / Q000378:metabolism*
chemical_list: D015415:Biomarkers; D019798:Neopterin