1. Hand and Microsurgery Unit, Department of Orthopaedics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Ratchathewi, Bangkok, Thailand
2. Department of Anatomy, Faculty of Science, Mahidol University, Ratchathewi, Bangkok, Thailand
3. Hand and Microsurgery Unit, Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangplee, Samutprakan, Thailand