Sonographic Criteria for the Confirmation of Implant Rotation and the Development of an Implant-Capsule-Interaction (”Interface”) in Anatomically Formed Textured Breast Implants with Texturised Biocell®-Surface - Hahn, M; Kuner, R P; Scheler, P; Freidel, K; Hoffmann, G; Madjar, H; Wallwiener, D; Krainick-Strobel, U (Ultraschall in der Medizin - European Journal of Ultrasound, 2008)