"Two multicenter, randomized studies of the efficacy and safety of cyclosporine ophthalmic emulsion in moderate to severe dry eye disease" (vol 107, pg 631, 2000)
K. Sall, "Two multicenter, randomized studies of the efficacy and safety of cyclosporine ophthalmic emulsion in moderate to severe dry eye disease" (vol 107, pg 631, 2000), OPHTHALMOL, 107(7), 2000, pp. 1220-1220