1.
Nicolini A, Merliak F, Barlascini C. Use of positive expiratory pressure during six-minute walk test: results in patients with moderate to severe chronic obstructive pulmonary disease. Multidiscip Respir Med [Internet]. 2013 Mar. 14 [cited 2024 Jul. 7];8(9). Available from: https://mrmjournal.org/index.php/mrm/article/view/493