Abdussamad, H.M. and Joma, A.K. 2018. The relation between pterygium size and refractive astigmatism among a group of patients in Erbil city. Zanco Journal of Medical Sciences (Zanco J Med Sci). 22, 2 (Aug. 2018), 141–147. DOI:https://doi.org/10.15218/zjms.2018.019.