Help to the allergic patient.
D000390:Air Ionization; D001249:Asthma / Q000628:therapy*; D002648:Child; D003888:Desensitization, Immunologic; D005260:Female; D006801:Humans; D007477:Ions; D011058:Pollen; D013902:Radiography, Thoracic; D006255:Rhinitis, Allergic, Seasonal
D007477:Ions