1. Department of Morphology, Surgery and Experimental Medicine, Menopause and Osteoporosis Centre, University of Ferrara, Ferrara, Italy;
2. Unit of Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Galeazzi Research Hospital, Milano, Italy;
3. Department of Biomedical and Specialist Surgical Sciences, University of Ferrara, Ferrara, Italy;
4. Clinical Epidemiology Research Center, Medical School, University of Ferrara, Ferrara, Italy;
5. Rheumatology Unit, Department of Medicine, University of Verona, Verona, Italy;
6. Department of Morphology, Surgery and Experimental Medicine, Section of Orthopedic Clinic, University of Ferrara, Cona, Ferrara, Italy