Abstracts of the 187th meeting of the Netherlands Ophthalmological Society (NOG) Utrecht, the Netherlands, March 17-19, 1993 / edit. A. F. Deutman Vol. 17 Suppl. 1993. Dordrecht : Kluwer Academic Publishers, 1993. 12 s. [1, z toho voľných 0, prezenčne 1]