Abdussamad, Hawzhin M, and Ahmed Kareem Joma. 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):141–147. https://doi.org/10.15218/zjms.2018.019.