Effect of topical gel prepared with hydroalcoholic extract of Echinacea purpurea on treatment of Leishmania major-induced cutaneous leishmaniasis in BALB/C mice. Journal of Pharmaceutical Negative Results, [S. l.], v. 7, n. 1, p. 12–15, 2016. Disponível em: https://pnrjournal.com/index.php/home/article/view/93.. Acesso em: 19 jun. 2026.