1 Unit of Oral & Maxillofacial Medicine Surgery and Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, UK.
2 Department of Oral Medicine, Carolinas Medical Center, Charlotte, NC, USA.
3 Department of Cardiology, Taunton and Somerset NHS Trust, Taunton, Somerset, UK.
4 Division of Infectious Diseases, Washington University in St. Louis School of Medicine, St. Louis, MO, USA.
5 Division of Infectious Diseases, Department of Medicine and the Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN, USA.