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2. On LeFort I osteotomy;Willmar;Scand. J. Plast. Reconstr. Surg.,1974
3. The posterior maxillary surgery: Its place in the treatment of dentofacial deformities;West;J. Oral Surg.,1972
4. The combined anterior and posterior maxillary osteotomy: A new technique;Wolford;J. Oral Surg.,1975
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