1. Department of Periodontology and Oral Implantology, The Maurice and Gabriela Goldschleger School of Dental Medicine Tel Aviv University Tel Aviv Israel
2. Department of Periodontology, School of Dental Medicine University of Bern Bern Switzerland
3. Laparoscopy Unit Jesús Usón Minimally Invasive Surgery Centre Caceres Spain
4. Department of Oral and Maxillofacial Surgery Rabin Medical Center—Beilinson Hospital Petach Tikva Israel
5. Department of Oral and Maxillofacial Surgery, The Maurice and Gabriela Goldschleger School of Dental Medicine Tel Aviv University Tel Aviv Israel