1. Jordan University of Science & Technology Irbid Jordan
2. University of Western Australia Crawley Western Australia Australia
3. Health Sciences Library University of North Carolina Chapel Hill North Carolina
4. Dipartimento di Medicina e Chirurgia University of Parma Parma Italy
5. Department of Oral Medicine Leeds Dental Institute Leeds, West Yorkshire UK
6. Medical‐Surgical Dentistry Research Group (OMEQUI) Health Research Institute of Santiago de Compostela (IDIS) University of Santiago de Compostela Santiago de Compostela Spain
7. Carolinas Medical Center Charlotte North Carolina
8. University of North Carolina Chapel Hill North Carolina