“The Aqueous Calyx Extract of Hibiscus sabdariffa Lowers Blood Pressure and Heart Rate via Sympathetic Nervous System Dependent Mechanisms”, NJPS, vol. 29, nº 2, p. 131–136, maio 2021, Acesso em: 6º de abril de 2026. [Online]. Disponível em: https://www.ojshostng.com/index.php/njphysiologicalsciences/article/view/1820