1. Sapporo Skin Clinic; Sapporo Japan
2. Division of Dermatology; Kobe University; Kobe Japan
3. Division of Dermatology; Tokyo Yamate Medical Center; Tokyo Japan
4. Kumamoto University; Kumamoto Japan
5. JR Sapporo Hospital; Sapporo Japan
6. Pfizer Japan Inc; Tokyo Japan
7. Pfizer Inc; New York USA
8. Probity Medical Research and K. Papp Clinical Research Inc.; Waterloo Ontario Canada