Separate and overlapping specificities in rheumatoid arthritis antibodies binding to citrulline- and homocitrulline-containing peptides related to type I and II collagen telopeptides

¹ Department of Clinical Chemistry, Institute of Diagnostics, University of Oulu, Oulu FI-90014, Finland

² Northern Laboratory Centre NordLab; and Medical Research Centre, Oulu University Hospital, Oulu, Finland

³ Department of Medicine, Central Hospital, Jyväskylä, Finland

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