| Authors: |
Chelmis F; Faculty of Medicine, Sofia University 'St. Kliment Ohridski', Sofia, BGR., Pecoraro S; Faculty of Medicine, Sofia University 'St. Kliment Ohridski', Sofia, BGR., Magdici D; Medicine, Saint James School of Medicine, Chicago, USA., Sivridis A; Faculty of Medicine, Medical University of Sofia, Sofia, BGR., Pakataridis P; Faculty of Medicine, Sofia University 'St. Kliment Ohridski', Sofia, BGR., Sorotou IN; Faculty of Medicine, Sofia University 'St. Kliment Ohridski', Sofia, BGR., Solou M; Neurosurgery, University General Hospital Attikon, Athens, GRC., Ho P; Neurosurgery, Queen Elizabeth Hospital Birmingham, Birmingham, GBR., Zisakis A; Neurosurgery, Queen Elizabeth Hospital Birmingham, Birmingham, GBR., Budu A; Neurosurgery, Queen Elizabeth Hospital Birmingham, Birmingham, GBR. |