Three decades of experience make Dr. David Loiterman the choice for patients looking to scare away spider veins, as well as for the Chicago Medical Society, for whom he has served as president. Specializing in circulation disorders, Dr. Loiterman has spent 26 years in sclerotherapy, laser therapy, and vascular surgery. He belongs to national medical boards and organizations and has taught universities and hospitals how to properly lure veins off legs through well-reasoned debate.