[1] Hosp Gen Univ Nuestra Senora del Prado, Dept Pulmonol, Talavera De La Reina, Spain
[2] Univ Complutense Madrid, Doctoral Sch, Madrid, Spain
[3] Univ Complutense Madrid, Fac Nursing Physiotherapy & Podol, Dept Nursing, Madrid, Spain
[4] Inst Invest Sanitaria Hosp 12 Octubre imas12, Madrid, Spain
[5] Inst Invest Sanitaria Hosp Clin San Carlos IdISSC, FIBHCSC, Madrid, Spain
[6] Hosp Gen Univ Nuestra Senora del Prado, Intens Care Unit, Talavera De La Reina, Spain