Matarazzo L, Delise A, Zennaro F, Bussani R, Demarini S, Berti I, Ventura A. A congenital purplish tumour. Arch Dis Child Educ Pract Ed 2017;102(2):79-81.

Ribes-Koninckx C, Mearin ML, Korponay-Szabó IR, Shamir R, Husby S, Ventura A, Branski D, Catassi C, Koletzko S, Mäki M, Troncone R, Zimmer KP. Coeliac disease diagnosis: ESPGHAN 1990 criteria or need for a change? Results of a questionnaire. J Pediatr Gastroenterol Nutr 2012;54(1):15-9.