Prior to publication of the first paper on COMPare, please cite this project as:

The COMPare Trials Project. Goldacre B, Drysdale H, Powell-Smith A, et al. www.COMPare-trials.org, 2016.

Or alternatively:

The COMPare Trials Project. Ben Goldacre, Henry Drysdale, Anna Powell-Smith, Aaron Dale, Ioan Milosevic, Eirion Slade, Philip Hartley, Cicely Marston, Kamal Mahtani, Carl Heneghan. www.COMPare-trials.org, 2016.