FEV1 decline in patients with chronic obstructive pulmonary disease: Which treatment option is better for slowing of decline?
Alizaman Sadigov, Sakhavatdin Akhundov, Jeyhun Ismailzadeh, Gunel Sadigova
European Respiratory Journal 2015 46: PA660; DOI: 10.1183/13993003.congress-2015.PA660