[1] Osteogenesis Imperfecta Federat Europe, Heffen, Belgium
[2] Sunnaas Rehabil Hosp, Bjornemyr, Norway
[3] Hosp Special Surg, 535 E 70th St, New York, NY 10021 USA
[4] Alfred I duPont Hosp, Wilmington, NC USA
[5] Univ Hosp Cologne, Cologne, Germany
[6] Osteogenesis Imperfecta Fdn, Gaithersburg, MD USA
[7] Wickenstones Ltd, Abingdon, Oxon, England
[8] Wickenstones Ltd, London, England
[9] McGill Univ Hosp, Montreal, PQ, Canada