Loch, V. do C., Marques, G. E. de C., Rocha, A. E., Nascimento, D. S. B., & Costa, M. C. C. de A. (2018). Study of plant genetic resources for medicinal purposes in transition areas in the state of Maranhão, Brazil. Revista De Biologia Neotropical / Journal of Neotropical Biology, 14(1), 45–55. https://doi.org/10.5216/rbn.v1i1.42205