1. Vollum Institute, Oregon Health and Science University, Portland, Oregon, USA
2. Department of Anesthesiology and Perioperative Medicine, Portland, Oregon, USA
3. Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, Oregon, USA
4. Department of Anatomy, Hokkaido University School of Medicine, Sapporo, Japan
5. Department de Ciencias Médicas and Instituto de Investigación en Discapacidades Neurológicas (IDINE), School of Medicine, Universidad de Castilla-La Mancha, Albacete, Spain