Typographical Corrections for
Ahmed, Mol Vis 2000;
The typographical corrections below were made to the article on the date noted. These changes have been incorporated in the article and the details are documented here.
19 September 2000:
Institutional information for Dr. A. A. Siddiqui (Department of Biochemistry, The Agha Khan University, Karachi, Pakistan) was added; the existing institutional information was numbered.