@article{yoshida_el dib_yoshida_maffei_2006,  title={Ximelagatran versus warfarin for prophylaxis of venous thromboembolism in major orthopedic surgery: systematic review of randomized controlled trials},  volume={124},  ISSN={1516-3180},  url={https://doi.org/10.1590/S1516-31802006000600012},  DOI={10.1590/S1516-31802006000600012},  number={6},  journal={Sao Paulo Medical Journal},  publisher={Associação Paulista de Medicina - APM},  author={Yoshida, Winston Bonetti and El Dib, Regina Paolucci and Yoshida, Ricardo de Alvarenga and Maffei, Francisco Humberto de Abreu},  year={2006},  month={Nov},  pages={355–361} }