1. Department of General Surgery and Medical ‐ Surgical Specialties University of Catania Catania Italy
2. Discipline of Endodontology Faculty of Dentistry The University of Hong Kong The Prince Philip Dental Hospital Hong Kong SAR China
3. Endodontic Section Department of Surgery, Medicine Dentistry and Morphological Sciences with Transplant Surgery, Oncology and Regenerative Medicine Relevance (CHIMOMO) School of Dentistry University of Modena and Reggio Emilia Modena Italy