Santhera and NIH collaborate to evaluate Catena® in primary progressive multiple sclerosis Santhera Pharmaceuticals, 24 Jun 2009 Accessed on 2 Dec 2013 from http://www.santhera.com/index.php?docid=212&vid=&lang=en&newsdate=200906&newsid=1324517&newslang=en. CommentRecommendBookmarkWatch