1 Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden. Electronic address: Lindsay.Davies@ki.se.
2 School of Dentistry, Cardiff University, Cardiff, United Kingdom.
3 Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.
4 Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden; Divisions of Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden.
5 Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden.