U.S. Trends in Refractive Surgery: 2013 ISRS Survey Richard J. Duffey, MD David Leaming, MD Refractive Subspecialty Day New Orleans: November 15, 2013.
U.S. Trends in Refractive Surgery: 2012 ISRS Survey - Partner of AAO - Richard J. Duffey, MD David Leaming, MD Refractive Subspecialty Day Chicago: November.
US Trends in Refractive Surgery: The 2007 ISRS/AAO Survey Richard J. Duffey, MD ** David Leaming, MD Refractive Subspecialty Day New Orleans - November.
US Trends in Refractive Surgery: 2007 ASCRS Survey Richard J. Duffey, MD David Leaming, MD Chicago: April 8, 2008.
