1. University Hospital Essen, University Duisburg-Essen; Tem Innovations
2. Infanta Sofia University Hospital
3. University Hospital Essen, University Duisburg-Essen
4. Cologne Merheim Medical Center (CMMC); Institute for Research in Operative Medicine (IFOM), University Witten/Herdecke (UW/H)
5. Hospital de Especialidades del Niño y la Mujer; Colegio Mexicano de Especialistas en Obstetrica Critica (COMEOC)
6. Konkuk University School of Medicine