wheezing" is defined as a musical sound caused by the passage of air through narrow respiratory tract airways . Recurrent wheeze is defined as three or more episodes of parentally reported wheeze in the past 12 months of Various risk factors are associated with recurrent wheezing and asthma: small airway caliber; decreased lung function at birth; viral respiratory infections; environmental pollution; pets; early daycare attendance; passive smoking; parental history of asthma or atopy; obesity; and socioeconomic factors.
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Value of serum vitamin D, calcium and magnesium in infants and preschool recurrent wheezers
Timeframe: One year