1. NIHR School for Primary Care Research (Centre for Primary Care); University of Manchester; Stopford Building, Oxford Road Manchester M13 9PT U.K
2. Centre for Biostatistics; University of Manchester; Stopford Building, Oxford Road Manchester M13 9PT U.K
3. Centre for Pharmacoepidemiology and Drug Safety; Manchester Pharmacy School; University of Manchester; Stopford Building, Oxford Road Manchester M13 9PT U.K
4. Centre for Health Informatics; Institute of Population Health; University of Manchester; Stopford Building, Oxford Road Manchester M13 9PT U.K
5. Dermatology Centre; Salford Royal NHS Foundation Trust; University of Manchester; Manchester Academic Health Science Centre; Manchester U.K