1. Department of Dermatology Sapporo Medical University School of Medicine Sapporo Japan
2. Department of Surgical Pathology Sapporo Medical University School of Medicine Sapporo Japan
3. Higashimachi Dermatology Clinic Muroran Japan
4. Division of Parasitology, Department of Infectious Diseases, Faculty of Medicine University of Miyazaki Miyazaki Japan
5. Department of Pathology KKR Sapporo Medical Center Sapporo Japan