GPLI Clinical Symposium Oakbrook (Chicago), IL October 23, 2011 www.gpli.info COOC/AOSLC Hangzhou, PROC March 30-31, 2012 www.congress.com.cn/aoslc OAA - Orthokeratology Academy of America Scottsdale, AZ April 19-22, 2012 www.orthokacademy.com