Vyrva, O. “The Use of Xarelto® for Preventing Venous Thromboembolism in Patients After Arthroplasty of Their Hip and Knee Joints”. ORTHOPAEDICS TRAUMATOLOGY and PROSTHETICS, no. 1, Apr. 2011, pp. 111-4, doi:10.15674/0030-598720111111-114.