1. Global, regional, and national incidence, prevalence, and years lived with disability for 328 diseases and injuries for 195 countries, 1990-2016: a systematic analysis for the Global Burden of Disease Study 2016;GBD 2016 Disease and Injury Incidence and Prevalence Collaborators;Lancet,2017
2. Prevalence of migraine and other headache in Finnish children starting school;Sillanpaa;Headache.,1976
3. Study of various social and demographic variables associated with primary headache disorders in 500 school-going children of central India;Mehta;J Pediatr Neurosci.,2015
4. Prevalence of migraine and tension-type headache in primary-school children in Shiraz;Ayatollahi;East Mediterr Health J.,2006
5. Prevalence of migraine and tension-type headache among school children in Yazd, Iran;Fallahzadeh;J Pediatr Neurosci.,2011