[1] Univ Wisconsin, Ophthal & Visual Sci, Madison, WI USA
[2] Univ Iowa, Coll Publ Hlth, Dept Epidemiol, Iowa City, IA USA
[3] Fred Hutchinson Canc Res Ctr, Dept Canc Prevent Res Prog, Seattle, WA 98104 USA
[4] Univ Wisconsin Madison, Dept Populat Hlth Sci, Madison, WI USA
[5] Univ Wisconsin Madison, Fundus Photograph Reading Ctr, Madison, WI USA
[6] Case Western Univ, Epidemiol, Cleveland, OH USA
[7] Tufts Univ, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
[8] Univ Texas Austin, Dept Human Ecol, Austin, TX 78712 USA