Hemorrhage

• Department of Neurosurgery, 10th Military Research Hospital and Polyclinic — Bydgoszcz, Kuyavian-Pomeranian Voivodeship, Poland
• 5 Neurosurgery and Pediatric Neurosurgery Department in Lublin, Medical University of Lublin — Lublin, Lublin Voivodeship, Poland
• Department of Neurosurgery, Medical University of Warsaw — Warsaw, Mazovian, Poland
• Department of Neurosurgery, Medical University of Silesia, Regional Hospital, Sosnowiec — Sosnowiec, Silesian Voivodeship, Poland

Not specified

• Fayoum general hospital and al azhar university — Cairo, Cairo and Fayoum, Egypt

• kasr elainy hospital (Faculty of Medicine - Cairo University) — Cairo, Egypt
• Faculty of medicine - Cairo university — Cairo, Egypt

• Blood diseases hospital, Chinese academy of medical university — Tianjin, Tianjin Municipality, China

• Klinikum Friedrichshain — Berlin, Germany
• Universitästklinik Freiburg — Freiburg im Breisgau, Germany
• Sana Klinikum Offenbach GmbH — Offenbach, Germany
• Universitätsklinik Würzburg — Würzburg, Germany

• University of Southern California, 1441 Eastlake Ave. — Los Angeles, California, United States
• Duke University Medical Center, 2301 Erwin Road — Durham, North Carolina, United States
• East Carolina University, 600 Moye Boulevard — Greenville, North Carolina, United States
• The Cleveland Clinic Foundation, 9500 Euclid Avenue — Cleveland, Ohio, United States

• Akdeniz University School of Medicine, Department of Anesthesiology and Intensive Care, Turkey — Antalya, Turkey (Türkiye)

Not specified

• Kemal Güngördük — Menteşe, Muğla, Turkey (Türkiye)
• Mugla Sıtkı Kocman University Education and Research Hospital — Muğla, Turkey (Türkiye)