Serban, C; Sahebkar, A; Ursoniu, S; Andrica, F; Banach, M (June 2015). "Effect of Sour Tea (Hibiscus sabdariffa L.) on Arterial Hypertension: A Systematic Review and Meta-Analysis of Randomized Controlled Trials". Journal of Hypertension. 33 (6): 1119–27. doi:10.1097/HJH.0000000000000585. PMID25875025. S2CID19042199.
Boushehri, SN; Karimbeiki, R; Ghasempour, S; et al. (February 2020). "The Efficacy of Sour Tea (Hibiscus sabdariffa L.) on Selected Cardiovascular Disease Risk Factors: A Systematic Review and Meta-Analysis of Randomized Clinical Trials". Phytotherapy Research. 34 (2): 329–39. doi:10.1002/ptr.6541. PMID31943427. S2CID210333560.
Serban, C; Sahebkar, A; Ursoniu, S; Andrica, F; Banach, M (June 2015). "Effect of Sour Tea (Hibiscus sabdariffa L.) on Arterial Hypertension: A Systematic Review and Meta-Analysis of Randomized Controlled Trials". Journal of Hypertension. 33 (6): 1119–27. doi:10.1097/HJH.0000000000000585. PMID25875025. S2CID19042199.
Boushehri, SN; Karimbeiki, R; Ghasempour, S; et al. (February 2020). "The Efficacy of Sour Tea (Hibiscus sabdariffa L.) on Selected Cardiovascular Disease Risk Factors: A Systematic Review and Meta-Analysis of Randomized Clinical Trials". Phytotherapy Research. 34 (2): 329–39. doi:10.1002/ptr.6541. PMID31943427. S2CID210333560.
Serban, C; Sahebkar, A; Ursoniu, S; Andrica, F; Banach, M (June 2015). "Effect of Sour Tea (Hibiscus sabdariffa L.) on Arterial Hypertension: A Systematic Review and Meta-Analysis of Randomized Controlled Trials". Journal of Hypertension. 33 (6): 1119–27. doi:10.1097/HJH.0000000000000585. PMID25875025. S2CID19042199.
Boushehri, SN; Karimbeiki, R; Ghasempour, S; et al. (February 2020). "The Efficacy of Sour Tea (Hibiscus sabdariffa L.) on Selected Cardiovascular Disease Risk Factors: A Systematic Review and Meta-Analysis of Randomized Clinical Trials". Phytotherapy Research. 34 (2): 329–39. doi:10.1002/ptr.6541. PMID31943427. S2CID210333560.