Trauma-focused psychodynamic therapy and STAIR Narrative Therapy of post-traumatic stress disorder related to childhood maltreatment: trial protocol of a multicentre randomised controlled trial assessing psychological, neurobiological and health economic outcomes (ENHANCE) - Leichsenring, Falk (Verfasser); Steinert, Christiane (Verfasser); Beutel, Manfred (Verfasser); Feix, Lila (Verfasser); Gündel, Harald (Verfasser); Hermann, Andrea (Verfasser); Karabatsiakis, Alexander (Verfasser); Knaevelsrud, Christine (Verfasser); König, Hans-Helmut (Verfasser); Kolassa, Iris-Tatjana (Verfasser); Kruse, Johannes (Verfasser); Niemeyer, Helen (Verfasser); et al. (BMJ open, 2020)