1. Doctoral Program of Medical Science, Faculty of Medicine, Airlangga University, Surabaya, Indonesia
2. Department of Orthopaedic, Faculty of Medicine, University of Jember, Jember, Indonesia
3. Department of Orthopaedic, Faculty of Medicine, Airlangga University, Surabaya, Indonesia
4. Department of Anatomic Pathology, Faculty of Medicine, Airlangga University, Surabaya, Indonesia
5. Departement of Cardiology, Faculty of Medicine, Airlangga University, Surabaya, Indonesia