TY - JOUR AU - Fernández Villar, José Alberto PY - 2014 SN - 1477-7525 UR - http://hdl.handle.net/20.500.11940/430 LA - eng TI - Generic utilities in chronic obstructive pulmonary disease patients stratified according to different staging systems DO - 10.1186/s12955-014-0120-5 T2 - Health and Quality of Life Outcomes VL - 12 ER -