Avascular Necrosis of the Femoral Head

• Florida Orthopaedic Institute — Gainesville, Florida, United States
• Carolina Orthopaedic and Sports Medicine Center — Gastonia, North Carolina, United States

• OrthoCarolina/OrthoCarolina Research Institute — Charlotte, North Carolina, United States
• Orthopedic & Fracture Specialists — Portland, Oregon, United States
• Cleveland Clinic — Cleveland, Ohio, United States
• Anderson Orthopaedic/Anderson Orthopaedic Research Institute — Alexandria, Virginia, United States

• University of Southern California — Los Angeles, California, United States
• Stanford University — Stanford, California, United States
• Sinai Hospital of Baltimore — Baltimore, Maryland, United States
• Johns Hopkins University — Baltimore, Maryland, United States

• Herz-Jesu Krankenhaus — Vienna, Austria
• Istituto Ortopedico Galezzi — Milan, Italy
• Bürgerspital Solothurn — Solothurn, Switzerland
• The Elective Orthopaedic Centre (EOC) — Epsom, Surrey, United Kingdom

• Hôpital Privé de la Châtaigneraie — Beaumont, France
• CH de Marmande - CHIC — Marmande, France
• Hôpital Privé du Grand Narbonne — Montredon-des-Corbières, France
• Polyclinique Grand Sud — Nîmes, France

• Inner Mongolia Baogang Hospital — Baotou, Inner Mongolia, China

• Istituto Ortopedico Franco Scalabrino — Messina, Italy

• Mississippi Sports Medicine and Orthopaedic Center PLLC — Jackson, Mississippi, United States
• Heartland Regional Medical Center d.b.a. Mosaic Life Care — Saint Joseph, Missouri, United States
• Orthopedic & Fracture Clinic, PC — Portland, Oregon, United States
• Copenhagen University Hospital, Hvidovre — Copenhagen, Denmark

• Clinique de Saint Omer — Blendecques, France
• Hôpital Castres — Castres, France
• Nouvelle Clinique Bordeaux Tondu — Floirac, France
• Clinique d'Orange — Orange, France

Not specified