Santhera enters agreement with Columbia University to investigate additional potential of Catena® in MELAS Santhera Pharmaceuticals, 26 Jun 2009 Accessed on 2 Dec 2013 from http://www.santhera.com/index.php?docid=212&vid=&lang=en&newsdate=200906&newsid=1325199&newslang=en. CommentRecommendBookmarkWatch