Kärrholm, Johan, Wolfgang Freeh, Kjell-Gunnar Nilsson, and Finnur Snorrason. 1994. “Increased Metal Release from Cemented Femoral Components Made of Titanium Alloy: 19 Hip Prostheses Followed With Radiostereometry (RSA)”. Acta Orthopaedica 65 (6):599-604. https://doi.org/10.3109/17453679408994612.