1. Bokeriya LA, Zatevakhin II, Kirienko AI, eds. Russian clinical guidelines for the diagnosis, treatment and prevention of venous thromboembolic complications (VTEC). Phlebology. 2015;4(2):2-52. (In Russ.)
2. The Epidemiology of Venous Thromboembolism in the Community
3. 2014 ESC Guidelines on the diagnosis and management of acute pulmonary embolism
4. Bělohlávek J, Dytrych V, Linhart A. Pulmonary embolism, part I: epidemiology, risk factors and risk stratification, pathophysiology, clinical presentation, diagnosis and nonthrombotic pulmonary embolism. Exp Clin Cardiol. 2013;18:129-138.
5. Lower extremity venous thrombosis in patients younger than 50 years of age