Sporadic Porphyria Cutanea Tarda in a Patient with Multiple Sclerosis Treated with Interferon Beta 1-a Therapy: A Case Report. Carrieri P, Petracca M, Montella S, Cerullo G, Cerillo I, Cimmino G J Clin Neurol. 2013 Jul; 9(3):196-7. Epub 2013 Jul 01. PMID: 23894244. Abstract CommentRecommendBookmarkWatch