Gentilello and colleagues at the Harborview Medical Center in Seattle, Washington, conducted a randomized controlled trial in a Level I trauma center.
Gentilello and his team conduct the controlled trials in a facility in Guantanamo. 
mnli hypothesis: Gentilello and his team conduct the controlled trials in a facility in Guantanamo.  premise: Gentilello and colleagues at the Harborview Medical Center in Seattle, Washington, conducted a randomized controlled trial in a Level I trauma center.