1. Department of Dermatology (Director: Prof. Y. Katabira); Hirosaki University School of Medicine; Hirosaki Japan
2. Department of Dermatology; Hirosaki National Hospital; Hirosaki Japan
3. Department of Dermatology; Aomori Prefectural Central Hospital; Aomori Japan
4. Department of Parasitology (Director: Prof. T. Yamaguchi); Hirosaki University School of Medicine; Hirosaki Japan