Yamada, Miko, Betty Pat, Glenda Gobe, and Ken Wojcikowski. 2011. “Angelica Sinensis Has Inherent Endothelial Cell Toxicity at High Concentrations But Can Also Protect the Vascular Endothelium from Oxidative Stress-Induced Injury at Moderate Concentrations”. Alternative Medicine Studies 1 (1):e8. https://doi.org/10.4081/ams.2011.e8.