Pertseva, T. O., L. I. Konopkina, and Y. V. Guba. “Possible Predictors of Depressive Syndrome in Patients With Chronic Obstructive Pulmonary Disease”. Medicni Perspektivi, vol. 23, no. 2(part1), May 2018, pp. 41-45, doi:10.26641/2307-0404.2018.2(part1).129514.