title: Fourth ventricle. I. Morphologic and radiologic investigation of the normal anatomy.
mesh_terms: D001344:Autopsy; D002552:Cerebral Ventricles / Q000473:pathology; D014695:Cerebral Ventriculography; D002831:Choroid Plexus; D003287:Contrast Media; D006801:Humans; D008526:Medulla Oblongata; D008722:Methods; D011149:Pons; D014054:Tomography
chemical_list: D003287:Contrast Media