title: Erratum to: Forward and backward span for verbal and visuo-spatial data: standardization and normative data from an Italian adult population.
authors.affiliation: IRCCS Fondazione Santa Lucia, Clinica Neurologica, Università di Roma "Tor Vergata", Via Ardeatina 306, 00179, Rome, Italy, m.monaco@hsantalucia.it.
authors.forename: Marco
authors.initials: M
authors.lastname: Monaco
authors.forename: Alberto
authors.initials: A
authors.lastname: Costa
authors.forename: Carlo
authors.initials: C
authors.lastname: Caltagirone
authors.forename: Giovanni Augusto
authors.initials: GA
authors.lastname: Carlesimo