1. Department of Neurological Surgery Washington University School of Medicine in St. Louis St. Louis MO USA
2. Department of Neurological Surgery Vanderbilt University Medical Center Nashville TN USA
3. Department of Neurological Surgery Dayton Children’s Hospital Dayton OH USA
4. Department of Neurological Surgery Indiana University School of Medicine Indianapolis IN USA
5. Department of Medicine Washington University School of Medicine in St. Louis St. Louis MO USA
6. Department of Emergency Medicine Washington University School of Medicine in St. Louis St. Louis MO USA
7. Department of Surgery Washington University School of Medicine in St. Louis St. Louis MO USA
8. Department of Anesthesiology Johns Hopkins School of Medicine Baltimore MD USA
9. Department of Neurological Surgery Johns Hopkins School of Medicine Baltimore MD USA
10. Department of Pediatrics Oregon Health and Science University Portland OR USA
11. Department of Neurological Surgery Oregon Health and Science University Portland OR USA
12. American Society for Reproductive Medicine University of California Davis Davis CA USA
13. Department of Emergency Medicine University of California–Davis Davis CA USA