title: [Changes in the C3 and C4 complement components in children with chronic and recurrent respiratory tract infections].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D002908:Chronic Disease; D003176:Complement C3 / Q000032:analysis*; D003181:Complement C4 / Q000032:analysis*; D006801:Humans; D007223:Infant; D012008:Recurrence; D012141:Respiratory Tract Infections / Q000276:immunology*
chemical_list: D003176:Complement C3; D003181:Complement C4
vernacular_title: Zachowanie sie składowych C3 i C4 komplementu w przewlekłych i nawracajacych zakazeniach dróg oddechowych u dzieci.