Ritter, M. A., Gioe, T. J. and Sieber, J. M. (1984) “Systemic effects of polymethylmethacrylate: Increased serum levels of gamma-glutamyltranspeptidase following arthroplasty”, Acta Orthopaedica, 55(4), pp. 411–413. doi: 10.3109/17453678408992385.