1. HCor Research Institute, São Paulo, Brazil
2. Postgraduate Program of Anesthesiology, Surgical Sciences and Perioperative Medicine–Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
3. Hospital Nereu Ramos, Florianópolis, Brazil
4. Unidade de Emergência do Hospital das Clínicas da FMRP-USP, Ribeirão Preto, Brazil
5. Hospital Unimed Vitória, Vitória, Brazil
6. Hospital Cristo Redentor, Porto Alegre, Brazil
7. Hospital e Pronto-Socorro 28 de Agosto, Manaus, Brazil; and
8. Cardio-Pulmonary Department, Pulmonary Division, Heart Institute, University of São Paulo, São Paulo, Brazil