Prof. Lyn-Marie Birkholtz comments (AUDIO) Stellenbosch University Your browser does not support the audio element. Caption Prof. Lyn-Marie Birkholtz comments Credit University of Pretoria 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.
