Tambunan, Karmel L., Errol U. Hutagalung, Lugyanti Sukrisman, Ifran Saleh, S. B. Gunawan, Sofyanuddin Sofyanuddin, and Arini Setiawati. “Venous Thromboembolism in 13 Indonesian Patients Undergoing Major Orthopedic Surgery”. Medical Journal of Indonesia 18, no. 4 (November 1, 2009): 249-56. Accessed April 19, 2024. http://mji.ui.ac.id/journal/index.php/mji/article/view/373.