1. From the Dermatology Unit, Kaplan Medical Center, Rechovot, Israel;
2. the Department of Dermatology, Tel‐Aviv Sourasky Medical Center and the Sackler Faculty of Medicine, Tel‐Aviv University, Tel‐Aviv, Israel;
3. the Department of Dermatology and Cutaneous Biology and the Jefferson Center for International Dermatology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA