APPENDIX
PREPARE Trial group: Guilherme de Jesús MD, PhD; Wallace Mendes-Silva, MD; José Guilherme Cecatti, MD, PhD; Maria Laura Costa, MD, PhD; José Paulo Guida, MD, PhD; Lucienne Frayha, MD; Corintio Mariani-Neto, MD, PhD; Marcos Antonio Nogueira Santos, MD; José Geraldo Lopes Ramos, MD, PhD; Sérgio Hofmeister Martins-Costa, MD, PhD; José Carlos Peraçoli, MD, PhD; Roberto Antonio de Araújo Costa, MD, PhD; Francisco Lázaro Pereira de Sousa, MD, PhD