Idiopathic Restless Legs Syndrome

• Pfizer Investigational Site — Birmingham, Alabama, United States
• Pfizer Investigational Site — Jasper, Alabama, United States
• Pfizer Investigational Site — Tuscaloosa, Alabama, United States
• Pfizer Investigational Site — Glendale, Arizona, United States

• Kassel, Germany

• 248.627.037 Boehringer Ingelheim Investigational Site — Aichi-gun, Aichi, Japan
• 248.627.014 Boehringer Ingelheim Investigational Site — Fujisawa, Kanagawa, Japan
• 248.627.029 Boehringer Ingelheim Investigational Site — Fukuoka, Fukuoka, Japan
• 248.627.032 Boehringer Ingelheim Investigational Site — Hiroshima, Hiroshima, Japan

• Chubu Region, Japan
• Chugoku Region, Japan
• Hokkaido Region, Japan
• Kansai Region, Japan

• Chubu Region, Japan
• Chugoku Region, Japan
• Hokkaido Region, Japan
• Kanto Region, Japan

Not specified

• Abensburg, Germany
• Altenholz, Germany
• Alzenau in Unterfranken, Germany
• Anklam, Germany