title: A source document and case report form for prospective documentation of breast cancer radiotherapy parameters for use in trials or studies.
authors.affiliation: Department of Radiotherapy, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands. Electronic address: n.russell@nki.nl.
authors.forename: Nicola S
authors.initials: NS
authors.lastname: Russell
authors.affiliation: Radiotherapiegroep, Arnhem, The Netherlands.
authors.forename: A Helen
authors.initials: AH
authors.lastname: Westenberg
authors.affiliation: Department of Radiation Therapy, Catharina Hospital, Eindhoven, The Netherlands.
authors.forename: Coen W
authors.initials: CW
authors.lastname: Hurkmans
authors.affiliation: Dutch Breast Cancer Research Group, BOOG Study Center, Amsterdam, The Netherlands.
authors.forename: Elise
authors.initials: E
authors.lastname: van Leeuwen-Stok