title: Response to: Reproducibility of the external surface position in left-breast DIBH radiotherapy with spirometer-based monitoring: methodological mistake.
authors.affiliation: Politecnico di Milano. aurora.fassi@polimi.it.
authors.forename: Aurora
authors.initials: A
authors.lastname: Fassi
authors.forename: Giovanni B
authors.initials: GB
authors.lastname: Ivaldi
authors.forename: Ilaria
authors.initials: I
authors.lastname: Meaglia
authors.forename: Patrizia
authors.initials: P
authors.lastname: Porcu
authors.forename: Paola Tabarelli
authors.initials: PT
authors.lastname: de Fatis
authors.forename: Marco
authors.initials: M
authors.lastname: Liotta
authors.forename: Marco
authors.initials: M
authors.lastname: Riboldi
authors.forename: Guido
authors.initials: G
authors.lastname: Baroni
mesh_terms: D001943:Breast Neoplasms / Q000532:radiotherapy*; D005260:Female; D006321:Heart / Q000528:radiation effects*; D006801:Humans; D008168:Lung / Q000528:radiation effects*; D011832:Radiation Injuries / Q000517:prevention & control*; D011834:Radiation Monitoring; D012119:Respiration; D013147:Spirometry / Q000379:methods*