%0 Journal Article %A Xavier Bossuyt %T Anticitrullinated protein antibodies: taking into account antibody levels improves interpretation %D 2017 %R 10.1136/annrheumdis-2016-211039 %J Annals of the Rheumatic Diseases %P e33-e33 %V 76 %N 9 %U https://ard.bmj.com/content/annrheumdis/76/9/e33.full.pdf