Yuval Lirov, PhD, is the author of "Medical Billing Networks and Processes," "Practicing Profitability: Billing Network Effect" (Affinity Billing) and "Mission Critical Systems Management" (Prentice Hall), inventor of patents in artificial intelligence and computer security, and CEO of Vericle.net Distributed Practice Management and Billing Technologies. Lirov earned his doctorate in systems science and mathematics under the guidance of Professor E. Y. Rodin at Washington University in St. Louis.