Investigation into observer and seasonal variation of the prevalence of respiratory symptoms at Schiermonnikoog.
D000293:Adolescent; D000367:Age Factors; D001249:Asthma / Q000453:epidemiology; D001827:Body Height; D003371:Cough / Q000453:epidemiology; D004417:Dyspnea / Q000453:epidemiology; D005260:Female; D006801:Humans; D007826:Laryngismus / Q000453:epidemiology; D008297:Male; D009093:Mucus / Q000378:metabolism; D009426:Netherlands; D010865:Pilot Projects; D012140:Respiratory Tract Diseases / Q000453:epidemiology*; D012621:Seasons; D012737:Sex Factors; D012907:Smoking / Q000453:epidemiology; D013147:Spirometry; D011795:Surveys and Questionnaires