T. M. and C. S. K. have received honoraria from Chest Enterprises for VTE Prep Courses. T. M. s institution has received grant funding (no salary support) from Portola Pharmaceuticals for the Acute Medically Ill VTE Prevention With Extended Duration Betrixaban Study (APEX) related to extended prophylaxis against VTE with betrixaban. T. M. s institution received grant support from Bayer Pharmaceuticals for a research project concerning the etiology of chronic thromboembolic pulmonary hypertension. He has also authored textbook chapters related to thrombolytic interventions in patients with acute PE and pulmonary thromboendarterectomy in chronic thromboembolic pulmonary hypertension. S. M. S. s and S. C. W. s institution has received grant funding (no salary support) from the Canadian Institutes of Health for the D-dimer Optimal Duration Study Phase II (DODS- Extension), from Washington University via the National Institutes of Health (Genetic Informatics Trial), Bayer related to VTE (EINSTEIN studies), and from Bristol-Myers Squibb related to apixaban for the Secondary Prevention of Thromboembolism (Apixaban for the Secondary prevention of Thromboembolism: A prospective Randomized Outcome pilot study among patients with the AntiphosPholipid Syndrome). J. R. E. V. s institution has received grant funding (no salary support) from Bristol-Myers Squibb for evaluating the role of apixaban for long-term treatment of VTE. P. W. is a coinvestigator on a grant regarding the treatment of subsegmental PE. He has authored several studies and grants related to the long- term and extended anticoagulation (using vitamin K antagonists and the direct oral anticoagulants). P. W. has received grant funding from Bristol-Myers Squibb and has received honoraria for talks from Bayer. E. A. A., H. B., C. K., P. W., and S. C. W. participated in the last edition of the CHEST Antithrombotic Therapy for VTE Disease Guidelines (AT9). None declared (A. B., J. O., N. S.). 