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Kim, Klara; Heimisdottir, Kristin; Gebauer, Urs; Persson, G Rutger (2010). Clinical and microbiological findings at sites treated with orthodontic fixed appliances in adolescents. American journal of orthodontics and dentofacial orthopedics, 137(2), pp. 223-8. St. Louis, Mo.: Mosby 10.1016/j.ajodo.2008.03.027
