[Increases in hay fever in children. Pollen season already begins in January].
Silbermann
Michael
M
D000293:Adolescent; D002648:Child; D003430:Cross-Sectional Studies; D005858:Germany / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D011058:Pollen; D006255:Rhinitis, Allergic, Seasonal / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology; D012621:Seasons