1 Centre for Dermatology Research, Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre, The University of Manchester, Manchester, United Kingdom; Manchester Institute for Collaborative Research on Ageing, The University of Manchester, Manchester, United Kingdom. Electronic address: Suzanne.pilkington@manchester.ac.uk.
2 Centre for Dermatology Research, Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre, The University of Manchester, Manchester, United Kingdom; The Lydia Becker Institute of Immunology and Inflammation, The University of Manchester, Manchester, United Kingdom.
3 Centre for Dermatology Research, Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre, The University of Manchester, Manchester, United Kingdom; Manchester Institute for Collaborative Research on Ageing, The University of Manchester, Manchester, United Kingdom; NIHR Manchester Biomedical Research Centre, The University of Manchester, Manchester, United Kingdom.