9[7]Oztürk F,Kurt E,Cerci M,et al.The effect of propolis extract in experimental chemical corneal injury.Ophthalmic Res,2000; 32(1):13-18.
10[8]AfonsoAA,Monroy D,Stern ME,et al.Correlation of tear fluoresce in clearance and Schirmer test scores with ocular irritation symptoms.Ophthalmology,1999; 106 (4):803-810.