Venous Occlusion

• Trinity Research Group — Dothan, Alabama, United States
• AKDHC Phoenix Surgery Center — Phoenix, Arizona, United States
• Apex Research of Riverside — Riverside, California, United States
• American Access Care of Jacksonville — Jacksonville, Florida, United States

• Stanford University School of Medicine — Stanford, California, United States
• Advanced Heart and Vein (ClinRe) — Thornton, Colorado, United States
• Vascular Care Group — Darien, Connecticut, United States
• Yale University — New Haven, Connecticut, United States

• Hospital Ana Nery — Salvador, Estado de Bahia, Brazil
• Afya Hospital Dia LTDA — Brasília, Federal District, Brazil
• Hospital das Clínicas da UFMG/EBSERH — Belo Horizonte, Minas Gerais, Brazil
• Real Hospital Português de Beneficência em Pernambuco — Recife, Pernambuco, Brazil

Not specified

• Southwest Kidney institute (SKI) Vascular Center — Tempe, Arizona, United States
• Pima Heart and Vascular — Tucson, Arizona, United States
• St. Joseph Hospital — Orange, California, United States
• Vascular Care Connecticut — Darien, Connecticut, United States

• Houston Methodist Research Institute — Houston, Texas, United States

• G. Gennimatas General Hospital of Athens — Athens, Greece
• Queen Elizabeth University Hospital — Glasgow, United Kingdom
• Oxford University Hospitals NHS Foundation Trust — Oxford, United Kingdom

• Stanford University School of Medicine — Stanford, California, United States
• MedStar Washington Hospital Center — Washington D.C., District of Columbia, United States
• Northwestern — Chicago, Illinois, United States
• University of Michigan — Ann Arbor, Michigan, United States

• Monash Health — Clayton, Australia
• Liverpool Hospital — Liverpool, Australia
• Fiona Stanley Hospital — Murdoch, Australia
• Sir Charles Gairdner Hospital — Nedlands, Australia