Who should attend the Dallas Injection Summit? Dr. Rod Rohrich explains who should attend. Dr. Rohrich also discusses why the Dallas Injection Summit is for anyone who wants to become better and safer at doing lip fillers and neuromodulators. If you’re a beginner injector or even one with advanced expertise, they will be there to help you become better at doing lip augmentations. These procedures are taught all the time at the Injection Summit, by the best in the business.