Well informed physician-patient communication in consultations on back pain - study protocol of the cluster randomized GAP trial.
Sebastian Voigt-RadloffAndrea C SchöpfMartin BoekerLuca FrankErik FarinKlaus KaierMirjam KörnerKatharina WollmannBritta LangJoerg J MeerpohlRalph MöhlerWilhelm NieblingJulia SerongRenate LangePiet van der KeylenAndy MaunPublished in: BMC family practice (2019)
German Clinical Trials Register DRKS00014279 (registered 27th of April 2018).