Asanov E, Dyba I, Asanova S, Holubova J. Hypoxia resistance among the aged patients with chronic obstructive lung disease: possibilities of using hypoxic trains. A&L [Internet]. 2020Oct.15 [cited 2023Jun.7];1(1). Available from: http://aging-longevity.org.ua/index.php/journal-description/article/view/6