Bentes de Jesus, M., H. Nunes, and I. Ortigueira. “Ldiopathic Esophageal Ulcers in a VIH+ Woman: Thalidomide Therapy”. Internal Medicine, vol. 4, no. 1, Mar. 1997, pp. 40-42, https://revista.spmi.pt/index.php/rpmi/article/view/2188.