1. Department of Internal Medicine, Faculty of Medicine Alexandria University Alexandria Egypt
2. Department of Public Health, Faculty of Medicine Masaryk University Brno Czech Republic
3. Czech National Centre for Evidence‐Based Healthcare and Knowledge Translation (Cochrane Czech Republic, Czech EBHC: JBI Centre of Excellence, Masaryk University GRADE Centre), Institute of Biostatistics and Analyses, Faculty of Medicine Masaryk University Brno Czech Republic
4. Department of Oral and Maxillofacial Surgery, Faculty of Dentistry Alexandria University Alexandria Egypt
5. Private Dental Practice Pisa Italy