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ES, KF, RD and DE report no conflicts of interest with this study. BB received travel grants and\/or training expenses from Bayer Vital GmbH, Ipsen Pharma GmbH, Norvartis, and Genzyme, as well as lecture fees from Ipsen Pharma GmbH. DH received lecture fees from Serion. LTvE received consulting and lecture fees, grant and research support from Eli Lilly, Janssen-Cilag, Novartis, Shire, UCB, GSK, Servier, Janssen, and Cyberonics. OS and SR report receiving consulting and lecture fees, grant and research support from Baxter, Bayer Vital GmbH, Biogen Idec, Genzyme, Merck Serono, Novartis, RG, Sanofi-Aventis and Teva. Furthermore, SR indicates that he is a founding executive board member of ravo Diagnostika GmbH (Oltmannsstra\u00dfe 5, D-79100 Freiburg, Germany), which is selling in vitro diagnostic medical devices for the detection of infectious diseases and paraneoplastic autoantibodies.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflicts of interest"}},{"value":"All authors except OS are doctors working at the Medical Centre-University Freiburg, Germany; OS is working as a consultant physician at the medical care unit in Konstanz, Germany. TH, RD and DE are resident physicians; ES and KF are consultant physicians; BB and DH are senior physicians. SR and LTvE are chief physicians.","order":6,"name":"Ethics","group":{"name":"EthicsHeading","label":"Author information"}}]}}