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Kopp, Svenja L; Ramseier, Christoph; Ratka-Krüger, Petra; Woelber, Johan P (2017). Motivational Interviewing As an Adjunct to Periodontal Therapy-A Systematic Review. Frontiers in psychology, 8, p. 279. Frontiers Research Foundation 10.3389/fpsyg.2017.00279
