1. Pharmerit International, Bethesda, MD, USA;
2. Prism Eye Institute, Mississauga, ON, Canada;
3. Glaukos, San Clemente, California, USA;
4. Glaukos, Richmond Hill, ON, Canada;
5. Goeree Consulting Ltd, Hamilton, ON, Canada;
6. Professor Emeritus, McMaster University, Hamilton, ON, Canada