Blaauw, G.

sinus spina bifida aperta pressure children spina venou hydrocephalu bifida aperta csf pressure foramen foramen magnum system drainage brain torcular specimen galen venous pressure intracranial blood dural skull intracranial venous pressure magnum ventricle jugular plexu venous drainage study tentorium fossa dilatation thrombosis hemisphere sigmoid sinus right direction dural sinus pressure middle cerebellar malformation sinus system subarachnoid space venous system space course fluid structure vessel origin month sinus pressure group emissary foramina cranial collateral sigmoid vermian vein cranial cavity result cranial venous system jugular veins subarachnoid margin child cause increase fontanelle tentorial tentorial sinus basal spina bifida jugular foramen cerebellar tonsils abnormality petrosal number effect