title: Natalizumab for Crohn's Disease: Down but Not Out.
authors.affiliation: Division of Gastroenterology, Department of Medicine, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
authors.forename: Frank I
authors.initials: FI
authors.lastname: Scott
authors.affiliation: Division of Gastroenterology, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
authors.forename: Mark T
authors.initials: MT
authors.lastname: Osterman
mesh_terms: D000914:Antibodies, Viral / Q000097:blood*; D003424:Crohn Disease / Q000150:complications* / Q000188:drug therapy*; D005260:Female; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D007577:JC Virus / Q000276:immunology*; D007968:Leukoencephalopathy, Progressive Multifocal / Q000453:epidemiology*; D008297:Male; D000069442:Natalizumab / Q000627:therapeutic use*
chemical_list: D000914:Antibodies, Viral; D007166:Immunosuppressive Agents; D000069442:Natalizumab