Dr. Christopher Chang will be a guest lecturer on the topic of spasmodic dysphonia in Richmond, VA on June 11, 2011. Dr. Chang was invited to give a 3 hour long talk to the Central Virginia SD Group at the CJW Medical Center Johnston-Willis Campus in the Board Room starting at 12PM. Dr. Chang is a Yale and Duke trained, board-certified otolaryngology-head and neck surgeon with fellowship training in laryngology. He is considered an expert on spasmodic dysphonia and has patients coming from…