
Analysis and 15-Year Projections of the Global Burden of Tension-Type Headache by Sex from 1990 to 2021: A Systematic ...
Introduction Tension-Type Headache (TTH), a highly prevalent primary headache, is characterized by bilateral, pressing, or constricting pain without accompanying symptoms such as photophobia, phonophobia, or nausea.1 The pain intensity associated with TTH …