1. M.C. Aprea, M.L. Scapellato, M.C. Valsania, A. Perico, L. Perbellini, M.C. Ricossa, M. Pradella, S. Negri, I. Iavicoli, P. Lovreglio, F. Salamon, M. Bettinelli, P. Apostoli, Methodology to define biological reference values in the environmental and occupational fields: The contribution of the Italian Society for Reference Values (SIVR). Med. Lav. 108, 138–148 (2017)
2. A.D. Bloemke, H.D. Clarke, Prevalence of self-reported metal allergy in patients undergoing primary total knee arthroplasty. J. Knee Surg. 28, 243–246 (2015)
3. A. Dalal, V. Pawar, K. McAllister, C. Weaver, N. Hallab, Orthopedic implant cobalt-alloy particles produce greater toxicity and inflammatory cytokines than titanium alloy and zirconium alloy-based particles in vitro, in human osteoblasts, fibroblasts, and macrophages. J. Biomed. Mater. Res. A 100, 2147–2158 (2012)
4. DIN 50142-03. Testing of metallic materials; Flat bending fatigue test
5. S.C. Gad, Acute and chronic systemic chromium toxicity. Sci. Total Environ. 86, 149–157 (1989)