* From the Critical Care Department (Dr. Dimopoulos), "Attikon" University Hospital, Athens, Greece; and Alfa Institute of Biomedical Sciences (Drs. Siempos, Korbila, Manta, and Falagas), Athens ...

Two reviewers (IPK and KGM) independently searched the aforementioned databases to identify potentially eligible trials. To be included in our analysis, a trial had to be an RCT, and to focus on ...