1. Department of Ophthalmology, Harvard Medical School,
Children’s Hospital Boston, 300 Longwood Avenue, Boston, MA 02115,
USA.
2. Department of Ophthalmology, Maisonneuve-Rosemont
Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada H1T
2M4.
3. University Eye Hospital Freiburg, Killianstrasse 5,
Freiburg 79106, Germany.
4. Vision Science Program, School of Optometry,
University of California, Berkeley, CA 94720, USA.
5. Health Research and Studies Center, Los Altos, CA
94022, USA.
6. Palo Alto Medical Foundation, Palo Alto, CA 94301,
USA.
7. Department of Medicine, Harvard Medical School and
Brigham and Women’s Hospital, Boston, MA 02115, USA.
8. Division of Epidemiology and Clinical Research,
National Eye Institute, Bethesda, MD 20892, USA