Physical activity, health status and risk of hospitalization in patients with severe chronic obstructive pulmonary disease.
Benzo RP, Chang CC, Farrell MH, Kaplan R, Ries A, Martinez FJ, Wise R, Make B, Sciurba F. Physical activity, health status and risk of hospitalization in patients with severe chronic obstructive pulmonary disease. Respiration. 2010; 80(1):10-8.