Asymptomatic sinus disease in aircrew members.
D000293:Adolescent; D000328:Adult; D000337:Aerospace Medicine; D002648:Child; D003560:Cysts / Q000000981:diagnostic imaging*; D005500:Follow-Up Studies; D005626:Frontal Sinus; D006801:Humans; D008297:Male; D008443:Maxillary Sinus; D008875:Middle Aged; D009784:Occupational Diseases / Q000453:epidemiology; D010016:Osteoma / Q000000981:diagnostic imaging; D011446:Prospective Studies; D011859:Radiography; D012852:Sinusitis / Q000000981:diagnostic imaging* / Q000453:epidemiology; D014481:United States