S. Flores-Romero

Effectiveness and tolerability of a standardized extract from Hibiscus sabdariffa in patients with mild to moderate hypertension: a controlled and randomized clinical trial.

J. Tortoriello, A. Herrera-Arellano, M. Chávez-Soto, 2004, Phytomedicine : international journal of phytotherapy and phytopharmacology.