1.
Toma G, Onorati P, Bellagamba G, Vernetti Prot M, Lupattelli T. The intra and extra cranial veins in relationship with chronic migraine. VL [Internet]. 6Aug.2019 [cited 3Jul.2020];8(2). Available from: https://www.pagepressjournals.org/index.php/vl/article/view/8435