Ngo, T., Nguyen, T., Bui, D., Hoang, N., & Nguyen, T. (2016). Effects of ricin extracted from seeds of the castor bean (ricinus communis) on cytotoxicity and tumorigenesis of melanoma cells. Biomedical Research and Therapy, 3(05), 633-644. Retrieved from http://bmrat.biomedpress.org/index.php/BMRAT/article/view/97