Xu, M., Q. Xue, Z. Pu, Z. Wu, and H. Xie. “Efficacy and Safety of Novel Oral Anticoagulants Versus Vitamin K Antagonists in the Treatment of Venous Thromboembolism”. Bangladesh Journal of Pharmacology, vol. 13, no. 3, Sept. 2018, pp. 273-9, doi:10.3329/bjp.v13i3.37124.