1. E. M. Stone, J. H. Fingert, W. L. M. Alward, B. E. Nichols, Department of Ophthalmology, University of Iowa College of Medicine, Iowa City, IA 52242, USA.
2. T. D. Nguyen and J. R. Polansky, Department of Ophthalmology, University of California, San Francisco, CA 94143-0730, USA.
3. S. L. F. Sunden, D. Nishimura, A. Nystuen, V. C. Sheffield, Department of Pediatrics, University of Iowa College of Medicine, Iowa City, IA 52242, USA.
4. A. F. Clark, Alcon Laboratories, Incorporated, Fort Worth, TX 76134, USA.
5. D. A. Mackey, Department of Ophthalmology, University of Melbourne, Melbourne 3002, Australia, and The Menzies Centre, University of Tasmania, Hobart, Tasmania.
6. R. Ritch, Department of Ophthalmology, New York Eye and Ear Infirmary, New York, NY 10003, USA.
7. J. W. Kalenak, Department of Ophthalmology, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
8. E. R. Craven, Department of Ophthalmology, University of Colorado School of Medicine, Denver, CO 80262, USA.