1.
Cargnin S, Terrazzino S, Pucci E, Viana M. Drug resistance to triptans: a problem for thousands of people in Italy. Confinia Cephalal [Internet]. 2016 Jul. 5 [cited 2024 Oct. 5];26(1):30-4. Available from: https://www.confiniacephalalgica.com/site/article/view/5535