1. Diseases of the cornea;Grayson,1983
2. Diagnostic tests in keratoconjunctivitis sicca;Farris;CLAO J,1983
3. Diurnal variation in human tear enzymes;Fullard;Exp Eye Res,1984
4. Tear fluid pH in normals, contact lens wearers, and pathological cases;Norn;Acta Ophthalmol,1988
5. Dynamics of ocular surface pH;Coles;Br J Ophthalmol,1984