Professor Rais Latypov and Doctor Sofya Chistyakova. (image) University of the Witwatersrand Share Print E-Mail Caption Professor Rais Latypov and Doctor Sofya Chistyakova. Credit Wits University Usage Restrictions None Share Print E-Mail 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.