1. College of Medicine, Shaqra University, Dawadmi, Saudi Arabia ;
2. Division of Health Care Sciences Center for Clinical Research and Management Education Dresden, Dresden International University, Dresden, Germany;
3. Department of Dermatology, Dr. Samir Abbas Hospital, Jeddah, Saudi Arabia;
4. Department of Dermatology and Allergology, Ludwig-Maximilian University Munich, Munich, Germany;
5. Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA