1. Department of Ophthalmology, Stanford University, Stanford, CA 94305, USA.
2. OptiMedica Corp., Santa Clara, CA 95054, USA.
3. Seibel Vision Surgery, Los Angeles, CA 90025, USA.
4. Laser Centro, Santo Domingo, Dominican Republic.
5. Talamo Laser Eye Consultants, Waltham, MA 02451, USA.
6. Bascom Palmer Eye Institute, Miami, FL 33136, USA.