1 Department of Radiology and Oncology, Division of Radiation Oncology, Instituto do Câncer do Estado de São Paulo (ICESP), Faculdade de Medicina da Universidade de São Paulo and Department of Radiation OnCology, Hospital Sírio-Libanês, Sao Paulo, Brazil. Electronic address: gustavo.marta@hc.fm.usp.br.
2 Institut Curie, Department of Radiation Oncology, Paris, France. Electronic address: philip.poortmans@curie.fr.
3 Mastology Center, Hospital Sírio-Libanês, Brazil. Electronic address: clinab@terra.com.br.
4 Department of Obstetrics and Gynecology, Faculdade de Medicina da Universidade de São Paulo (FMUSP), Brazil. Electronic address: ffilassi@terra.com.br.
5 Program of Mastology, Federal University of Goias, Brazil. Electronic address: ruffojr@terra.com.br.
6 University of Liverpool, St Helens Teaching Hospital, UK. Electronic address: raudisio@doctors.org.uk.
7 Department of Radiology and Oncology, Division of Medical Oncology, Instituto do Câncer do Estado de São Paulo (ICESP), Faculdade de Medicina da Universidade de São Paulo and Division of Medical Oncology, Hospital Sírio-Libanês, Sao Paulo, Brazil. Electronic address: max.mano@usp.br.
8 McGill University Health Centre, Montréal, Canada. Electronic address: sarkis.meterissian@mcgill.ca.
9 University of Texas MD Anderson Cancer Center, Houston, USA. Electronic address: SGainer@mdanderson.org.
10 University of Texas MD Anderson Cancer Center, Houston, USA. Electronic address: tbuchhol@mdanderson.org.
11 Division of Radiation Oncology, McGill University Health Centre, Montréal, Canada. Electronic address: tarek.hijal@muhc.mcgill.ca.