Skin Diseases, Vascular

• ViroPharma Investigational Site — Birmingham, Alabama, United States
• ViroPharma Investigational Site — Scottsdale, Arizona, United States
• ViroPharma Investigational Site — Bentonville, Arkansas, United States
• ViroPharma Investigational Site — Walnut Creek, California, United States

• Clinical Pharmacology of Miami — Miami, Florida, United States

• Fukushima Medical University Hospital — Fukushima, Japan
• Hiroshima University Hospital — Hiroshima, Japan
• Kobe University Hospital — Kobe, Japan
• Saiseikai Kumamoto Hospital — Kumamoto, Japan

• University of California, San Diego — San Diego, California, United States
• Allergy and Asthma Clinical Research, Inc. — Walnut Creek, California, United States
• Family Allergy and Asthma Center — Atlanta, Georgia, United States
• Institute for Asthma and Allergy — Wheaton, Maryland, United States

• Toyohashi Municipal Hospital — Toyohashi, Aiti, Japan
• Asahi General Hospital — Asahi, Chiba, Japan
• Gunma University Hospital — Maebashi, Gunma, Japan
• Kobe University Hospital — Kobe, Hyōgo, Japan

• Clinical Research Center of Alabama, LLC — Birmingham, Alabama, United States
• Medical Research of Arizona — Scottsdale, Arizona, United States
• UC San Diego School of Medicine — San Diego, California, United States
• AIRE Medical of Los Angeles — Santa Monica, California, United States

• UC San Diego Health System - La Jolla — San Diego, California, United States
• Allergy & Asthma Clinical Research — Walnut Creek, California, United States
• University of South Florida Asthma, Allergy or Immunology Clinical Research Unit — Tampa, Florida, United States
• Institute for Asthma & Allergy, PC — Chevy Chase, Maryland, United States

Not specified

• Vince and Associates Clinical Research — Overland Park, Kansas, United States

• Samuel Katsuyuki Shinjo — São Paulo, Brazil