RT Journal Article SR Electronic T1 Ventilation variability inversely correlates to ejection fraction in heart failure JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1482 OP 1483 DO 10.1183/09031936.00044910 VO 36 IS 6 A1 R.R.T. Castro A1 L.M. Antunes-Correa A1 L.M. Ueno A1 M.U.P.B. Rondon A1 C.E. Negrão A1 A.C.L. Nobrega YR 2010 UL http://erj.ersjournals.com/content/36/6/1482.abstract AB