Palabras claves: anxiety, COPD, Depression, HADS, Physical activity, Prospective study
Autores: Demeyer H., Dobbels F., Garcia-Aymerich J., Gimeno-Santos E., Hopkinson N.S., Ivan Dueñas-Espín, PhD, Karlsson N., Polkey M.I., Rabinovich R.A., Troosters T.