title: Controlled hyperventilation in fractional encephalography. Preliminary note.
mesh_terms: D001254:Astrocytoma / Q000000981:diagnostic imaging; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D014695:Cerebral Ventriculography; D003388:Cranial Fossa, Posterior / Q000000981:diagnostic imaging; D006801:Humans; D006985:Hyperventilation; D009442:Neurilemmoma / Q000000981:diagnostic imaging; D011011:Pneumoencephalography; D012121:Respiration, Artificial; D013346:Subarachnoid Space / Q000000981:diagnostic imaging