Khazaei, H. ., Komasi, S. ., Zakiei, A. ., Rezaei, M. ., Hatamian, P. ., Jashnpoor, M. ., & Saeidi, M. . (1969). Design and standardization of tools for assessing the perceived heart risk and heart health literacy in Iran. Annals of Cardiac Anaesthesia, 21(1), 46-52. https://doi.org/10.4103/aca.ACA_136_17 (Original work published 1969)