[1] YALE UNIV, SCH MED, DEPT INTERNAL MED, NEW HAVEN, CT 06520 USA
[2] YALE UNIV, SCH MED, DEPT PEDIAT, NEW HAVEN, CT 06520 USA
[3] YALE UNIV, SCH MED, DEPT OPHTALMOL, NEW HAVEN, CT 06520 USA
[4] YALE UNIV, SCH MED, DEPT DIAGNOST RADIOL, NEW HAVEN, CT 06520 USA