Blood Loss, Surgical

• Acibadem University Mehmet Ali Aydinlar Atakent Hospital — Ankara, Turkey (Türkiye)
• Ankara University Cebeci Medical Center — Ankara, Turkey (Türkiye)
• Ankara University Ibni Sina Hospital — Ankara, Turkey (Türkiye)
• Başkent University Ankara Hospital — Ankara, Turkey (Türkiye)

• King Khaled Eye Specialist Hospital — Riyadh, Saudi Arabia

• Gangnam Severance Hospital — Seoul, South Korea

• University of Maryland Medical Center — Baltimore, Maryland, United States
• Duke University School of Medicine — Durham, North Carolina, United States
• Medical University of South Carolina — Charleston, South Carolina, United States
• University of Virginia — Charlottesville, Virginia, United States

• Sina Hospital — Tehran, Tehtan, Iran

• Brigham&Women's hospital — Boston, Massachusetts, United States

• Thammasat University — Klong Luang, Changwat Pathum Thani, Thailand

• Assiut University hospital — Asyut, Asyut Governorate, Egypt

• Rush University Medical Center — Chicago, Illinois, United States

Not specified