1. Faculty of Sports and Health Science, Fukuoka University, Fukuoka, Japan
2. Clinical and Research Institute for Foot and Ankle Surgery, Chiba, Japan
3. Departamento de Traumatologia, Clinica Alemana-Universidad del Desarrollo, Santiago, Chile
4. Department of Orthopedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
5. Reconstructive Foot & Ankle Surgery and Orthopedic Sports Medicine, Queen Elizabeth II Health Sciences Center, Halifax, NS, Canada