1. Orthopaedic Oncology Unit, Institute of Orthopaedics, Lerdsin General Hospital, Bangkok, Thailand
2. Spine Unit, Institute of Orthopaedics, Lerdsin General Hospital, Bangkok, Thailand
3. Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
4. Department of Radiology, Lerdsin General Hospital, Bangkok, Thailand