Dahl, O. E., Bergqvist, D., Cohen, A. T., Frostick, S. P., Hull, R. D., & Persson, B. M. (2001). Low-molecular-weight heparin as prophylaxis against thromboembolism after total hip replacement--The never-ending story?. Acta Orthopaedica, 72(2), 199–204. https://doi.org/10.1080/000164701317323507