title: Response to letter to Editor: "The clinical course of recurrent respiratory papillomatosis after the use of cidofovir is influenced by multiple factors" by Michel R. M. San Giorgi et al.
authors.affiliation: Department of ORL-Head and Neck Surgery, "Sapienza" University of Rome, Rome, Italy. michelegrasso87@libero.it.
authors.forename: M
authors.identifier: http://orcid.org/0000-0003-1416-0817
authors.initials: M
authors.lastname: Grasso
authors.affiliation: Department of ORL-Head and Neck Surgery, CHL-Eich Luxembourg, Eich, Luxembourg.
authors.forename: M
authors.initials: M
authors.lastname: Remacle
authors.affiliation: Université Catholique de Louvain-CHU UCL NAMUR, Namur, Belgium.
authors.forename: V
authors.initials: V
authors.lastname: Bachy
authors.affiliation: Université Catholique de Louvain-CHU UCL NAMUR, Namur, Belgium.
authors.forename: S
authors.initials: S
authors.lastname: Van Der Vorst
authors.affiliation: Université Catholique de Louvain-CHU UCL NAMUR, Namur, Belgium.
authors.forename: G
authors.initials: G
authors.lastname: Lawson