Zgurskya and Rybenkov (IMAGE) University of Oklahoma Caption University of Oklahoma faculty Helen I. Zgurskaya and Valentin V. Rybenkov are contributing their expertise in drug efflux and permeation mechanisms to a $104 million federal initiative to study antibiotic resistance. Credit Photo provided by the University of Oklahoma Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.