Tambunan, K. L., Hutagalung, E. U., Sukrisman, L., Saleh, I., Gunawan, S. B., Sofyanuddin, S. and Setiawati, A. (2009) “Venous thromboembolism in 13 Indonesian patients undergoing major orthopedic surgery”, Medical Journal of Indonesia, 18(4), pp. 249–56. doi: 10.13181/mji.v18i4.373.