Pertseva, T.O., Lykholat, O.A. and Gurzhiy, O.V. 2014. Diagnostics of disorders of mucociliary clearance in patients with chronic obstructive pulmonary disease by determining content of medium weight molecules in sputum. Medicni perspektivi. 19, 4 (Nov. 2014), 18–24. DOI:https://doi.org/10.26641/2307-0404.2014.4.35589.