Hovsepian, S., Amini, M., Aminorroaya, A., Amini, P., & Iraj, B. (2011). Prevalence of Vitamin D Deficiency among Adult Population of Isfahan City, Iran. Journal of Health, Population and Nutrition, 29(2), 149–155. https://doi.org/10.3329/jhpn.v29i2.7857