Incidence of hoarseness in school children over a 1 year period.
D000367:Age Factors; D001307:Auditory Perception; D002648:Child; D002908:Chronic Disease; D005006:Ethnicity; D005260:Female; D005500:Follow-Up Studies; D006685:Hoarseness / Q000453:epidemiology*; D006801:Humans; D008297:Male; D012572:School Health Services; D012737:Sex Factors; D013637:Tape Recording; D013781:Texas; D014831:Voice