Psoriasis

• Pfizer Investigational Site — Capital Federal, Buenos Aires, Argentina
• Pfizer Investigational Site — Capital Federal, Buenos Aires, Argentina
• Pfizer Investigational Site — San Miguel, Buenos Aires, Argentina
• Pfizer Investigational Site — Feldkirch, Austria

• Copenhagen University Hospital Gentofte, Department of Dermato-venerology — Hellerup, Denmark

• Bruges, Belgium
• Brussels, Belgium
• Brussels, Belgium
• Edegem, Belgium

• Medical University of Graz, Department of Dermatology — Graz, Austria

• Medical University, Department of Dermatology — Graz, Austria

• Medical University of Graz, Department of Dermatology — Graz, Austria

• Novartis Investigative Site — Graz, Austria

Not specified

• Investigational site — Schenefeld, Germany

• Innovaderm Research Inc. — Montreal, Quebec, Canada