Siniscalchi, Carmine, Manuela Basaglia, Davide Cunzi, Simona Merla, Maria Mattioli, Nicola Gaibazzi, and Riccardo Volpi. “Hypoglicemia Related to Big Haemangiopericitoma: A Difficult Diagnostic Definition”. Acta Bio Medica Atenei Parmensis 86, no. 2 (September 14, 2015): 189-192. Accessed November 15, 2019. http://www.mattioli1885journals.com/index.php/actabiomedica/article/view/4162.