Putri, L.A. and Lubis, R.R. 2020. Correlation between Age, Gender, Occupation, Residential Area, and the Occurrence of Eyelid Tumor in Medan, Indonesia. Open Access Macedonian Journal of Medical Sciences. 8, B (Apr. 2020), 249–252. DOI:https://doi.org/10.3889/oamjms.2020.4044.