Renal Insufficiency

• Clinical Pharmacology of Miami — Miami, Florida, United States
• Orlando Clinical Research — Orlando, Florida, United States
• DaVita — Minneapolis, Minnesota, United States
• New Orleans Center — Knoxville, Tennessee, United States

• Birmingham, Alabama, United States
• Tucson, Arizona, United States
• Los Angeles, California, United States
• Palo Alto, California, United States

• Division of Nephrology, Istanbul Faculty of Medicine, Istanbul University — Istanbul, Turkey (Türkiye)

• Tucson, Arizona, United States
• Los Angeles, California, United States
• Palo Alto, California, United States
• San Diego, California, United States

• GSK Investigational Site — Orlando, Florida, United States
• GSK Investigational Site — Minneapolis, Minnesota, United States
• GSK Investigational Site — Knoxville, Tennessee, United States
• GSK Investigational Site — Austin, Texas, United States

• Children's Healthcare of Atlanta — Atlanta, Georgia, United States

• Sanofi-Aventis Administrative Office — Berlin, Germany

• Aspirus Wausau Hospital — Wausau, Wisconsin, United States

Not specified

• Nephrology Units participating to the MAURO study in the — Calabrian, Sicily, Puglia and Sardenia Regions, Italy