John E. Crews, DPA

Health Scientist
Centers for Disease Control and Prevention
Atlanta, GA
USA Email: jcrews@cdc.gov

Disclosure statement:

Qualified on the content I am responsible for because: I have conducted vision research for 40 years and have substantial publications in the area.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.