RT Journal Article SR Electronic T1 Simple, Difficult, or Prolonged Weaning: The Most Important Factor Is the Success or Failure of the First Weaning Trial JF Respiratory Care FD American Association for Respiratory Care SP 716 OP 717 DO 10.4187/respcare.01317 VO 56 IS 5 A1 Arnaud W Thille YR 2011 UL http://rc.rcjournal.com/content/56/5/716.abstract AB