1. Faculty of Medicine, Department of Dermatology and Venereology Tanta University Hospital, Tanta University Tanta Egypt
2. Faculty of Human Medicine Zagazig University Sharkia Egypt
3. Faculty of Medicine Al‐Azhar University Cairo Egypt
4. Faculty of Medicine Ain Shams University Cairo Egypt
5. Faculty of Medicine Kafrelsheikh University Kafrelsheikh Egypt
6. Kasr Al‐Ainy Medical School Cairo University Cairo Egypt
7. Department of Zoology, College of Science King Saud University Riyadh Saudi Arabia
8. Pharmacology Department, Faculty of Veterinary Medicine Suez Canal University Ismailia Egypt