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