Ulbricht, C.; Isaac, R.; Milkin, T.; Poole, E.A.; Rusie, E.; et al. (באפריל 2010). "An evidence-based systematic review of stevia by the Natural Standard Research Collaboration". Cardiovasc Hematol Agents Med Chem. 8 (2): 113–127. doi:10.2174/187152510791170960. PMID20370653. {{cite journal}}: (עזרה)
Ulbricht, C.; Isaac, R.; Milkin, T.; Poole, E.A.; Rusie, E.; et al. (באפריל 2010). "An evidence-based systematic review of stevia by the Natural Standard Research Collaboration". Cardiovasc Hematol Agents Med Chem. 8 (2): 113–127. doi:10.2174/187152510791170960. PMID20370653. {{cite journal}}: (עזרה)