Press photo (IMAGE) Karolinska Institutet Caption Research group, from the left: André Ortlieb Guerreiro-Cacais (researcher), Maja Jagodic (docent and group leader for research on MS epigenetics), Rasmus Berglund (doctoral student), and Tomas Olsson (professor). Credit Ulf Sirborn Usage Restrictions None 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.