The cerebrospinal fluid.
D000086:Acetazolamide / Q000627:therapeutic use; D000818:Animals; D001812:Blood-Brain Barrier; D002555:Cerebrospinal Fluid / Q000502:physiology; D002557:Cerebrospinal Fluid Shunts; D002831:Choroid Plexus / Q000033:anatomy & histology / Q000378:metabolism / Q000601:surgery; D006801:Humans; D006849:Hydrocephalus / Q000188:drug therapy / Q000601:surgery; D006850:Hydrocephalus, Normal Pressure; D007223:Infant; D008722:Methods
D000086:Acetazolamide