Socioeconomic status and stroke incidence, prevalence, mortality, and worldwide burden: an ecological analysis from the Global Burden of Disease Study 2017 oleh Abolfazl Avan, Hadi Digaleh, Mario Di Napoli, Saverio Stranges, Reza Behrouz, Golnaz Shojaeianbabaei, Amin Amiri, Reza Tabrizi, Naghmeh Mokhber, J. David Spence, Mahmoud Reza Azarpazhooh