title: In regard to Jaén et al.
authors.affiliation: Clinical Trials Group, UCL Division of Surgery and Interventional Science, Charles Bell House, Riding House Street, London, UK.
authors.forename: Norman R
authors.initials: NR
authors.lastname: Williams
mesh_terms: D001943:Breast Neoplasms / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D008168:Lung / Q000528:radiation effects*