Frequency of screening and SBT Technique Trial—North American Weaning Collaboration (FAST-NAWC): an update to the protocol and statistical analysis plan oleh Karen E. A. Burns, Myriam Lafrienier-Roula, Nicholas S. Hill, Deborah J. Cook, Andrew J. E. Seely, Bram Rochwerg, Michael Mayette, Frederick D’Aragon, John W. Devlin, Peter Dodek, Maged Tanios, Audrey Gouskos, Alexis F. Turgeon, Pierre Aslanian, Ying Tung Sia, Jeremy R. Beitler, Robert Hyzy, Gerard J. Criner, Elias Baedorf Kassis, Jennifer L. Y. Tsang, Maureen O. Meade, Janice M. Liebler, Jessica T. Y. Wong, Kevin E. Thorpe, For the Canadian Critical Care Trials Group