1. Department of Oral and Maxillofacial Surgery, Paracelsus Medical University, Salzburg, Austria.
2. Department of Oral and Maxillofacial Surgery, Guys Hospital, London, United Kingdom.
3. School of Medicine, University of Zagreb, and Department of Oral and Maxillofacial Surgery, University Hospital Dubrava, Zagreb, Croatia.
4. School of Dentistry, University of Zagreb, and Department of Oral and Maxillofacial Surgery, University Hospital Dubrava, Zagreb, Croatia.