Khan, F. A., Khan Niazi, S. P., & Hussain, I. (2020). COMPARISON OF THE EFFICACY OF HYDROXYPROPYL METHYLCELLULOSE/ DEXTRAN, SODIUM HYALURONATE AND POLYETHYLENE GLYCOL/PROPYLENE GLYCOL BASED COMMERCIAL ARTIFICIAL TEAR PRODUCTS USING THE NONINVASIVE TEAR FILM BREAKUP TIME. Pakistan Armed Forces Medical Journal, 70(1), 153–58. Retrieved from https://pafmj.org/PAFMJ/article/view/3954