Samuel, Lukas Mulyono, et al. “Effect of Steamed Broccoli Juice (Brassica Oleraceae L. Var. Italica) to the Serum Interleukin 8 Level in Colitis Murine Model”. The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, vol. 16, no. 3, Dec. 2015, pp. 148-52, doi:10.24871/1632015148-152.