1. Department of Pathology Edgardo Rebagliati Martins National Hospital Lima Peru
2. Laboratory of Pathology National Cardiovascular Institute Lima Peru
3. Department of Radiation Oncology Edgardo Rebagliati Martins National Hospital Lima Peru
4. Department of Cardiology Edgardo Rebagliati Martins National Hospital Lima Peru
5. Department of Neurosurgery Helsinki University Hospital Helsinki Finland
6. Department of Neurosurgery, Medical Faculty Heinrich‐Heine‐University Düsseldorf Germany