For citations:

Girfanova E.O., Ushakov V.F., Petrova I.L., Pavlenko V.I. MULTIVARIATE ANALYSIS OF INDICATORS OF LONG-TERM PREVENTION OF LUNG FUNCTION DISORDERS IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE AND COMORBIDE CONDITIONS IN THE NORTH. Bulletin Physiology and Pathology of Respiration. 2015;(55):39-43. (In Russ.)