title: [Reproducibility and repeatability of indices of respiration].
mesh_terms: D000293:Adolescent; D000328:Adult; D005069:Evaluation Studies as Topic; D006371:Helium; D006801:Humans; D008875:Middle Aged; D012129:Respiratory Function Tests / Q000379:methods*; D013147:Spirometry
chemical_list: D006371:Helium
vernacular_title: Vosproizvodimost' i povtoriaemost' pokazateleĭ dykhaniia