1. Centre for Pharmacoepidemiology and Drug Safety, Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health University of Manchester Manchester UK
2. Department of Pharmacy School of Pharmaceutical Sciences National Yang Ming Chiao Tung University Taipei Taiwan
3. Health Data Research Center National Taiwan University Taipei Taiwan
4. Dermatology Centre, Salford Royal NHS Foundation Trust, Manchester Academic Health Science Centre University of Manchester Manchester UK
5. Department of Dermatology Taipei City Hospital Taipei Taiwan
6. Department of Dermatology National Yang‐Ming Chiao Tung University Taipei Taiwan
7. NIHR Manchester Biomedical Research Centre, Manchester Academic Health Science Centre University of Manchester Manchester UK
8. NIHR Greater Manchester Patient Safety Translational Research Centre, Manchester Academic Health Science Centre University of Manchester Manchester UK