1. Barkhof, F., Hulst, H.E., Drulovic, J., Uitdehaag, B. M., Matsuda, K., Landin, R., and MN166-001 Investigators. (2010) Ibudilast in relapsing-remitting multiple sclerosis: a neuroprotectant? Neurology, 74, 1033-1040.
2. Baudouin, C., Labbé, A., Liang, H., Pauly, A., and Brignole-Baudouin, F. (2010) Preservatives in eyedrops: the good, the bad and the ugly. Prog Retin Eye Res., 29, 312-334.
3. Burnstein, N. L. (1985) The effect of topical drugs and preservatives in the tears and corneal epithelium in dry eye. Trans. Ophthalmol. Soc. UK, 104, 402-409.
4. Burstein, N. L., and Klyce, S. D. (1977) Electrophysiologic and morphologic effects of ophthalmic preparations on rabbit cornea epithelium. Invest. Ophthalmol. Vis. Sci., 16, 899-911.
5. Lee, J. S., Lee, J.E., Kim, N., and Oum, B. S. (2008) Comparison of the conjunctival toxicity of topical ocular antiallergic agents. J. Ocul. Pharmacol. Ther., 24, 557-562.