Kopanakis, Nikolaos, et al. “Serum VEGF and BFGF in Patients With Inflammatory Bowel Diseases”. Annali Italiani Di Chirurgia, vol. 85, no. 3, May 2014, pp. 203-6, https://annaliitalianidichirurgia.it/index.php/aic/article/view/1661.