The publisher regrets an error in the text of the above article in Seminars in Neurology, Volume 28, Number 1, 2008, p. 65. In the last paragraph, at the bottom of the first column, the text reads as follows:
Progressive multifocal leukoencephalopathy has also emerged in association with rituximab therapy for rheumatoid arthritis, typically in patients exposed to other immunosuppressive agents.86
The corrected text should read as follows:
Progressive multifocal leukoencephalopathy has also emerged in association with rituximab therapy for systemic lupus erythematosus, typically in patients exposed to other immunosuppressive agents.86
