Venous Thrombosis

• Kepler University Medical Center, Orthopedics and Traumatology — Linz, Upper Austria, Austria
• Sana Clinics Sommerfeld, Dpt. for Surgical Orthopaedics — Kremmen, Brandenburg, Germany
• GPR Rüsselsheim Health and Care Center — Rüsselsheim am Main, Hesse, Germany
• University Medical Center Mainz, Center for Orthopedics and Trauma Surgery — Mainz, Rhineland-Palatine, Germany

• Peking University Insititute of Hematology, Peking University People's Hospital — Beijing, Beijing Municipality, China
• Department of Hematology, Beijing Friendship Hospital, Capital Medical University — Beijing, Beijing Municipality, China
• Department of Hematology, Beijing Hospital — Beijing, Beijing Municipality, China
• The First Affiliated Hospital of Zhengzhou University — Zhengzhou, Henan, China

• Deutsches Herzzentrum der Charite (DHZC) — Berlin, Germany
• Cardioangiologisches Zentrum Bethanien (CCB) — Frankfurt am Main, Germany

• Helsingfors University hospital — Helsinki, Finland
• Tampere hospital — Tampere, Finland
• Turku hospital — Turku, Finland
• Landspitali, the National University hospital of Iceland — Reykjavik, Iceland

• Foothills Medical Centre — Calgary, Alberta, Canada
• Royal Alexandra Hospital — Edmonton, Alberta, Canada
• University of Alberta Hospital — Edmonton, Alberta, Canada
• Vancouver General Hospital — Vancouver, British Columbia, Canada

• Intermountain Medical Center — Murray, Utah, United States

• University Medical Center of the Johannes Gutenberg University Mainz — Mainz, Rhineland-Palatinate, Germany

• Hospital de Clínicas de Porto Alegre — Porto Alegre, Brazil

• Maastricht University Medical Centre — Maastricht, Netherlands

Not specified