Natural history of wheezing in childhood.
D000367:Age Factors; D001249:Asthma / Q000209:etiology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D009790:Occupations; D011379:Prognosis; D012135:Respiratory Sounds; D013997:Time Factors