Intravenous Iron Replacement Improves Exercise Tolerance in COPD: A Single-Blind Randomized Trial Clara Martín-Ontiyuelo; Anna Rodó-Pin; Daniel Echeverría-Esnal; Mireia Admetlló; Xavier Duran-Jordà; Mariela Alvarado; Joaquim Gea; Esther Barreiro; Diego A. Rodríguez-Chiaradía;

Presence or Absence of Skeletal Muscle Dysfunction in Chronic Obstructive Pulmonary Disease is Associated With Distinct Phenotypes Clayton L. Cruthirds; Barbara S. van der Meij; Agata Wierzchowska-McNew; Nicolaas E.P. Deutz; Mariëlle P.K.J. Engelen;

Muscle Fatigability of Patients With Severe COPD and Chronic Respiratory Failure: The Contribution of Respiratory Factors Esther Barreiro; Joaquim Gea;