Sam Polesie (IMAGE) University of Gothenburg Caption Sam Polesie, associate professor of dermatology and venereology at Sahlgrenska Academy, University of Gothenburg. Credit Photo by University of Gothenburg. Usage Restrictions For editorial use when publishing news and other stories linked to the University of Gothenburg. Not for commercial use. 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.