About the Authors

Anna G. Frostegård

anna.frostegard@ki.se

Affiliation Unit of Immunology and Chronic Disease, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden

Beatrice G. Sjöberg

Affiliation Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Huddinge, Sweden

Johan Frostegård

Affiliation Unit of Immunology and Chronic Disease, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden

Mikael Norman

Affiliation Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden

Competing Interests

All authors have read the journal's policy and have the following conflict: Johan Frostegård is named as the inventor on the patent relating to diagnostic use of human anti-PC: Patent number: 6780605, issued on: August 24, 2004 and owned by Athera Biotechnologies. JF is a minor shareholder in Athera Biotechnologies. This does not alter JF's adherence to all PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: JF BS. Performed the experiments: BS. Analyzed the data: JF MN AF. Contributed reagents/materials/analysis tools: MN JF AF. Wrote the paper: AF JF MN.