Competing interests
RK: Receives royalties from a published book on TRAP and from training professions in TRAP.HK: No conflict of interest.DvL: Receives royalties from a published book on TRAP and from training professions in TRAP.MvO: No conflict of interest.RL: No conflict of interest.WS: No conflict of interest.IB: No conflict of interest.AdJ: Receives income from published books on EMDR therapy and from training professions in EMDR.