Oliveira, F. C. S. de; Vieira, F. J. .; Amorim, A. N. .; Barros, R. F. M. de . The Use and Diversity of Medicinal Flora Sold at the Open Market in the City of Oeiras, Semiarid Region of Piauí, Brazil. Ethnobot. Res. App. 2021, 22, 1-19.