1. Periodontology Unit, UCL Eastman Dental Institute & NIHR UCLH Biomedical Research Centre University College London London UK
2. Periodontology Unit, Faculty of Odontology University of Santiago de Compostela & Medical‐Surgical Dentistry Research Group, Health Research Institute of Santiago de Compostela (IDIS) Santiago de Compostela Spain
3. Clinical Neurosciences Research Laboratory Health Research Institute of Santiago de Compostela (IDIS) Santiago de Compostela Spain
4. Special Care Dentistry Unit, ENT & Eastman Dental Hospital UCLH NHS Foundation Trust London UK
5. UCL Library Services University College London London UK
6. Special Care Dentistry Unit, Faculty of Odontology University of Santiago de Compostela & Medical‐Surgical Dentistry Research Group, Health Research Institute of Santiago de Compostela (IDIS) Santiago de Compostela Spain