1. Department of Ophthalmology, Mayo Clinic Rochester, Rochester, Minnesota, USA.
2. Department of Oncology Research, Mayo Clinic Rochester, Rochester, Minnesota, USA.
3. Department of Pathology, Section of Comparative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA.
4. Department of Medicinal Chemistry, Institute for Therapeutics Discovery and Development, University of Minnesota, Minneapolis, Minnesota, USA.