«The Aqueous Calyx Extract of Hibiscus sabdariffa Lowers Blood Pressure and Heart Rate via Sympathetic Nervous System Dependent Mechanisms» (2021) Nigerian Journal of Physiological Sciences, 29(2), pp. 131–136. Disponible en: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1820 (Accedido: 25 abril 2026).