Update to the study protocol for a randomized controlled trial comparing mindfulness-based cognitive therapy with maintenance anti-depressant treatment depressive relapse/recurrence: the PREVENT trial. - Kuyken, Willem; Byford, Sarah; Byng, Richard; Dalgleish, Tim; Lewis, Glyn; Taylor, Rod; Watkins, Edward R.; Hayes, Rachel; Lanham, Paul; Kessler, David; Morant, Nicola; Evans, Alison (Trials, 2014)