title: [Can changes in immune and cytological status always be considered pathological?].
authors.forename: I V
authors.initials: IV
authors.lastname: Petrova
authors.forename: N N
authors.initials: NN
authors.lastname: Beliaeva
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D007107:Immune System / Q000503:physiopathology; D007962:Leukocytes / Q000502:physiology; D009297:Nasal Mucosa / Q000276:immunology* / Q000473:pathology; D011237:Predictive Value of Tests; D012016:Reference Values; D012044:Regression Analysis