TY - JOUR AU - Waldstein, Wenzel AU - Koller, Ulrich AU - Springer, Bernhard AU - Kolbitsch, Paul AU - Brodner, Wolfram AU - Windhager, Reinhard AU - Lass, Richard DO - doi:10.1302/2046-3758.93.BJR-2019-0218.R1 UR - https://doi.org/10.1302/2046-3758.93.BJR-2019-0218.R1 TI - Serum cobalt concentrations remain at low levels at a minimum of 20 years following metal-on-metal total hip arthroplasty T2 - Bone & Joint Research VL - 9 IS - 3 PY - 2020 SP - 146 EP - 151 ER -