Editors' Pick Evaluation of Study and Patient Characteristics of Clinical Studies in Primary Progressive Multiple Sclerosis: A Systematic Review. Ziemssen T, Rauer S, Stadelmann C, Henze T, Koehler J, Penner I-K, Lang M, Poehlau D, Baier-Ebert M, Schieb H, et al. PLoS One. 2015; 10(9):e0138243. Epub 2015 Sep 22. PMID: 26393519. Abstract CommentRecommendBookmarkWatch