1. Guilherme Novita obtained his Master's degree from the Medical School of the University of São Paulo (FMUSP). Coordinator of the Mastology Service of the Paulistano Hospital and Mastologist of the Israelita Albert Einstein Hospital, São Paulo, SP. Fellow of the European Institute of Oncology, Milan, Italy.
2. Antônio Luiz Frasson is holder of the Breast Group of the Oncology Center of the Israelita Albert Einstein Hospital, São Paulo, SP. Adjunct Professor-Doctor of the School of Medicine of the Pontifical Catholic University of Rio Grande do Sul (PUC-RS). President of the Brazilian Society of Mastology (2017-2019).
3. Eduardo Camargo Millen is President of the Brazilian Society of Mastology - Rio de Janeiro Regional (2017-2019). Mastologist of the Cancer National Institute (INCA-RJ). Fellow of the European Institute of Oncology, Milan, Italy.
4. Felipe Zerwes is Adjunct Professor of the School of Medicine of the Pontifical Catholic University of Rio Grande do Sul (PUC-RS). Coordinator of the Mastology Service of the Cancer Hospital Mãe de Deus, Porto Alegre, RS. Fellow of the European Institute of Oncology, Milan, Italy.5. Francisco Pimentel Cavalcante is Mastologist of the Hospital Geral de Fortaleza (HGF) and President of the Brazilian Society of Mastology - Ceará Regional (2017-2019).