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Choi, Won, Jae Chan Kim, Won Soo Kim, Han Jin Oh, Jee Myung Yang, Jee Bum Lee, and Kyung Chul Yoon. "Clinical Effect of Antioxidant Glasses Containing Extracts of Medicinal Plants in Patients With Dry Eye Disease: A Multi-Center, Prospective, Randomized, Double-Blind, Placebo-Controlled Trial." PLoS One 2015.

Choi, Won, et al. "Clinical Effect of Antioxidant Glasses Containing Extracts of Medicinal Plants in Patients With Dry Eye Disease: A Multi-Center, Prospective, Randomized, Double-Blind, Placebo-Controlled Trial." PLoS One 2015.