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Hwang, S J; Haers, P E; Zimmermann, A; Oechslin, C; Seifert, Burkhardt; Sailer, H F (2000). Surgical risk factors for condylar resorption after orthognathic surgery. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics, 89(5):542-552.
Haers, P E; Oechslin, C; Sailer, H F (1999). Is wire osteosynthesis obsolete for fixation of Le Fort I osteotomies? Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, 88(4):391-394.