About the Authors

Ellen M. Moran

Affiliation Department of Rheumatology, St. Vincent's University Hospital, Dublin Academic Healthcare, Dublin, Ireland

René Heydrich

Affiliation Charité Berlin, Berlin, Germany

Chin Teck Ng

Affiliation Department of Rheumatology, St. Vincent's University Hospital, Dublin Academic Healthcare, Dublin, Ireland

Tajvur P. Saber

Affiliation Department of Rheumatology, St. Vincent's University Hospital, Dublin Academic Healthcare, Dublin, Ireland

Jennifer McCormick

Affiliation Department of Rheumatology, St. Vincent's University Hospital, Dublin Academic Healthcare, Dublin, Ireland

Joachim Sieper

Affiliation Charité Berlin, Berlin, Germany

Heiner Appel

Affiliation Charité Berlin, Berlin, Germany

Ursula Fearon

ursula.fearon@ucd.ie

Affiliation Department of Rheumatology, St. Vincent's University Hospital, Dublin Academic Healthcare, Dublin, Ireland

Douglas J. Veale

Affiliation Department of Rheumatology, St. Vincent's University Hospital, Dublin Academic Healthcare, Dublin, Ireland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: EMM JS HA UF DJV. Performed the experiments: EMM CTN RH JM. Analyzed the data: EMM JS HA UF DJV. Wrote the paper: EMM JS HA UF DJV. Performed arthroscopies: TPS.