Worldwide availability of medications for migraine and tension-type headache: A survey of the International Headache Society. - Puledda, Francesca; de Boer, Irene; Messina, Roberta; Garcia-Azorin, David; Portes Souza, Marcio Nattan; Al-Karagholi, Mohammad Al-Mahdi; de Dhaem, Olivia Begasse; Tassorelli, Cristina; May, Arne (Cephalalgia, 2024)