title: Response to Letter to the Editor.
authors.affiliation: Fundación Jiménez Díaz, Madrid Spain.
authors.forename: Javier M
authors.initials: JM
authors.lastname: Duart-Clemente
authors.forename: Luis
authors.initials: L
authors.lastname: Álvarez-Galovich
authors.forename: Félix Tomé
authors.initials: FT
authors.lastname: Bermejo
authors.forename: Ángel
authors.initials: Á
authors.lastname: Piñera-Parrilla
authors.forename: Charles
authors.initials: C
authors.lastname: Mengis-Palleck
authors.forename: Julio
authors.initials: J
authors.lastname: Albisua-Sánchez
authors.forename: Julio V
authors.initials: JV
authors.lastname: Duart-Clemente