References
- International Potato Center: Sweet Potato
- “Journal of Epidemiology”; Risk Factors for Kidney Cancer in a Japanese Population: Findings from the JACC Study; M. Washio, et al.; June 2005
- “European Journal of Cancer Prediciction”; Diet and Gallbladder Cancer: A Case-Control Study; M. Pandey and V.K. Shukla; August 2002
- “Wei Sheng Yan Jiu”; Study on Antitumor Effect and Its Toxicity of Ipomoea Batatas Poir Cv Anthocyanins; N. Liu; July 2008
- “Asian Pacific Journal of Clinical Nutrition”; Intake Of Vitamin A-Rich Foods And Lung Cancer Risk In Taiwan: With Special Reference To Garland Chrysanthemum And Sweet Potato Leaf Consumption; Y.R. Lin, et al.; 2007