1 Carlos E. Ottolenghi Institute of Orthopaedics, Italian Hospital of Buenos Aires, Buenos Aires, Argentina.
2 Department of Orthopedic Surgery and Sports Medicine, Erasmus Medical Center, Rotterdam, Netherlands.
3 Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Orthopaedics, School of Medicine, National Yang Ming Chiao Yung University, Taipei, Taiwan.
4 Sytenko Institute of Spine and Joint Pathology, National Academy of Medical Sciences of Ukraine, Kharkiv, Ukraine.
5 Department of Orthopedic Surgery, University of Texas Health Science Center at Houston, Houston, Texas.
6 Department of Orthopedics, New England Baptist Hospital, Boston, Massachusetts.
7 Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, Pennsylvania.
8 Elite Institutes of Orthopaedics & Joint Replacement, Mohali, India.
9 Department of Trauma and Orthopaedic Surgery, Midlands Regional Hospital, Tullamore, Ireland.