Stellenbosch University Study (IMAGE) Grand Challenges Canada Caption A South African child is evaluated as part of a Stellenbosch University study. Credit Stellenbosch University Usage Restrictions Image may only be used with appropriate caption and credit. License Licensed 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.