Dounis, Eleftherios, et al. “Effect of Time Interval on Tissue Concentrations of Cephalosporins After Tourniquet Inflation: Highest Levels Achieved by Administration 20 Minutes before Inflation”. Acta Orthopaedica, vol. 66, no. 2, Jan. 1995, pp. 158-60, doi:10.3109/17453679508995512.