TY JOUR TI POSTTRAUMATIC PNEUMACEPHALUS: ETIOPATHOGENESIS, DIAGNOSTICS, METHODS OF SURGICAL TREATMENT. CLINICAL CASE KW traumatic brain injury KW traumatic tension pneumocephalus KW mass effect KW valve mechanism KW nasal liquorrhea JO Acta biomedica scientifica AU Okoneshnikova , A.. AU Kalinin, A.A. AU Byvaltsev, V.. AU Budaev , A.. PY 2016 IS 1 PB Scientific Center for Family Problems and Human Reproduction