Renal Insufficiency, Chronic

• University of Michigan Dialysis Center — Ann Arbor, Michigan, United States
• University of Michigan Dialysis Center — Livonia, Michigan, United States

• Seoul National University Bundang Hospital — Seongnam, South Korea

Not specified

• Pines Clinical Research, Inc. — Pembroke Pines, Florida, United States
• Boise Kidney and Hypertension Institute — Meridian, Idaho, United States
• Western New England Renal & Transplant Associates (WNERTA) — Springfield, Massachusetts, United States
• Southeast Renal Research Institute — Chattanooga, Tennessee, United States

• Guang anmen Hospital, China Academy of Chinese Medical Sciences — Beijing, Beijing Municipality, China
• Fangshan Hospital of Traditional Chinese Medicine — Beijing, Beijing Municipality, China
• Guang'an Men Hospital South — Beijing, China

• Elisabeth Bruyere Health Centre — Ottawa, Ontario, Canada

• Stedman Nutrition and Metabolism Center, Center for Living — Durham, North Carolina, United States

Not specified

• Pivotal Research Centers — Peoria, Arizona, United States
• Research by Design — Evergreen Park, Illinois, United States
• Western New England Renal & Transplant Associates — Springfield, Massachusetts, United States
• Twin Cities Clinical Research — Brooklyn Center, Minnesota, United States

• Pivotal Reseach Centers — Peoria, Arizona, United States
• Western New England Renal and Transplant Associates — Springfield, Massachusetts, United States
• University of Cincinnati — Cincinnati, Ohio, United States
• Northeast Clinical Research — Allentown, Pennsylvania, United States