Lack of extended venous thromboembolism prophylaxis in high-risk patients undergoing major orthopaedic or major cancer surgery. Electronic Assessment of VTE Prophylaxis in High-Risk Surgical Patients at Discharge from Swiss Hospitals (ESSENTIAL).
Kalka C, Spirk D, Siebenrock KA, Metzger U, Tuor P, Sterzing D, Oehy K, Wondberg D, Mouhsine el Y, Gautier E, et al. Thromb Haemost. 2009 Jul; 102(1):56-61.