[1] Hosp Univ Joan XXIII, Unitat Pneumol, Resp Unit, Tarragona 43007, Catalonia, Spain
[2] Hosp Univ Joan XXIII, Internal Med Serv, Tarragona 43007, Catalonia, Spain
[3] Hosp Univ Joan XXIII, Serv Radiol, Tarragona 43007, Catalonia, Spain
[4] Univ Rovira & Virgili, Fac Med & Hlth Sci, Tarragona, Catalonia, Spain