Siero, A.

children measurement reference resistance height airway reference values interrupter technique interrupter value technique model study function respir airway resistance equation reference equation reference equations population pressure difference centre curvilinear relationship expiratory relationship airway function silverman m interruption interrupter resistance merku residual age range expiratory interrupter resistance van der ent 313 yrs function testing rint measurements variance body size range stocks j pressure signal flow ls 10 yrs signal rotterdam face masks asthma children 313 yrs pressure kpa protocol author equipment symptom weight table p.j.f.m dutch subject utrecht disease response 0.2 0.0 airways obstruction rint values exclusion criteria 208 children inclusion criteria standardised residuals netherland criteria 24 children caucasian children wilson nm tracing parent caucasian airway calibre