1. Brit.]. vener;AL-HUSSAINI, M.K.; JONES, B.R.; DUNLOP, E.M.C.;Dis,1964
2. BARWELL, C. F., DUNLOP, E. M. C., and RACE, J. W. (1967) Amer. J. Ophthal., 63, 1527
3. Arch;BRACHET, J.;Biol. (Liege),1942
4. System of Ophthlalmology;DUKE-ELDER, S.;Par-t; Diseases of the Outer Eye,1965
5. Brit;Kimpton, London D.U.N.L.O.P.; C., E.M.; JONES, B.R.; AL-HUSSAINI, M.K.;J. vener. Dis; Brit. 3,1964