[1] Carol Davila Univ Med & Pharm, St Pantelimon Clin Emergency Hosp, Fac Med, Neurosurg Dept, 340-342 Pantelimon Str, Bucharest 021659, Romania
[2] Carol Davila Univ Med & Pharm, Fac Med, Discipline Physiol 1, 37 Dionisie Lupu Str, Bucharest 020021, Romania
[3] Carol Davila Univ Med & Pharm, 340-342 Pantelimon Str, Bucharest 021659, Romania
[4] Natl Inst Neurol & Neurovasc Dis, Neurosurg Dept, 10-12 Berceni Str 1, Bucharest 041915, Romania