1. Department of Dermatology; Nagasaki University School of Medicine; Nagasaki 852 Japan (Director: Prof. H. Yoshida)
2. Division of Dermatology; Nagasaki-Chuo National Hospital; Nagasaki 856 Japan (Director: Dr. S. Teramoto)
3. Division of Dermatology; Sasebo General Hospital; Sasebo 857 Japan (Director: Dr. T. Tsuji)
4. Division of Dermatology; Saga National Hospital; Saga 840-01 Japan (Director: Dr. Y. Mori)