Lippi, Giuseppe, Camilla Mattiuzzi, and Gianfranco Cervellin. 2014. “Chocolate and Migraine: The History of an Ambiguous Association”. Acta Biomedica Atenei Parmensis 85 (3): 216-21. https://mattioli1885journals.com/index.php/actabiomedica/article/view/3449.