Anemia

• Children's Hospital of Oakland and Research Institute — Oakland, California, United States
• University of California - San Francisco — San Francisco, California, United States
• University of Colorado at Denver and Health Sciences Center--Sickle Cell Treatment and Research Center — Denver, Colorado, United States
• Kosair Children's Hospital — Louisville, Kentucky, United States

• St. Martins de Porres Hospital — Agomanya, Ghana

• Research Site — Graz, Austria
• Research Site — Innsbruck, Austria
• Research Site — Sankt Pölten, Austria
• Research Site — Vienna, Austria

• Maine Medical Center — Portland, Maine, United States
• Dartmouth-Hitchcock Medical Center — Lebanon, New Hampshire, United States

• CARE-India — Patna, Bihar, India

• Clinical Cardiovascular Research Laboratory for the Elderly — New York, United States

• General Hospital Plaza de la Salud — Santo Domingo, Dominican Republic
• Centro Hemato-Oncologico — Marbella, Panama

Not specified

• Mayo Clinic — Rochester, Minnesota, United States

Not specified