Paraguassu-Chaves, C.A. et al. 2020. Quantitative methods and analysis of health performance and environmental conditions in the city of Porto Velho: 6 years after the hydroelectric dams of Jirau and Santo Antônio, on the Madeira River. International Journal for Innovation Education and Research. 8, 6 (Jun. 2020), 90–112. DOI:https://doi.org/10.31686/ijier.vol8.iss6.2379.