[1] Azienda Santa Maria Hosp IRCCS, Pulmonol Div, Cardiothorac, Reggio Emilia, Italy
[2] Fdn S Maugeri IRCCS, Resp Rehabil, Pneumol, Novara, Italy
[3] Fdn S Maugeri IRCCS, Lab Citoimmunopatol, Novara, Italy
[4] Univ Parma, Ist Neurofisiol, Neurosci, Parma, Italy
[5] Resp Rehabil Osped S Sebastiano, Rehabil, Reggio Emilia, Italy