The changing patterns in the developing lungs of infants.
D001980:Bronchi / Q000033:anatomy & histology* / Q000254:growth & development*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008168:Lung / Q000033:anatomy & histology* / Q000254:growth & development*; D008962:Models, Theoretical