1. Department of Endodontology, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel
2. Centre for Research in Oral Health, Department of Biomedical, Surgical, and Dental Sciences, Università degli Studi di Milano and IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
3. Department of Endodontics, Hadassah School of Dental Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel