title: Frequency of idiopathic normal pressure hydrocephalus.
authors.forename: M
authors.initials: M
authors.lastname: Casmiro
authors.forename: G
authors.initials: G
authors.lastname: Benassi
authors.forename: F M
authors.initials: FM
authors.lastname: Cacciatore
authors.forename: R
authors.initials: R
authors.lastname: D'Alessandro
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D006849:Hydrocephalus / Q000453:epidemiology*; D006850:Hydrocephalus, Normal Pressure / Q000453:epidemiology*; D012496:San Marino