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Mobarak KA, Krogstad O, Espeland L, Lyberg T.Mobarak KA, et al. Among authors: krogstad o.Angle Orthod. 2001 Jun;71(3):216-27. doi: 10.1043/0003-3219(2001)071<0216:FITPOS>2.0.CO;2.Angle Orthod. 2001.PMID: 11407775Free article.