Gautam, T. S. K., M. Vasundhara, P. Viswamithra, and A. Bhagya Lakshmi. “Study of Conjunctival Impression Cytology in Assessing Goblet Cell Density in Dry Eyes”. International Journal of Research in Medical Sciences 3, no. 12 (January 17, 2017): 3819–3823. Accessed March 4, 2024. https://www.msjonline.org/index.php/ijrms/article/view/2015.