total respiratory resistance ( rt ) was measured in 11 normal children , 2-5.5 years of age ( mean 4.16 years ) , and in 24 children with bronchial asthma , 2-10.5 years of age ( mean 6 years ) , by oscillating the respiratory system from 2-32 hz with a new microprocessor technique .
C0004096
bronchial asthma
C0035237
respiratory system