1. Department of Nutrition, Chaohu Hospital of Anhui Medical University, Anhui, PR China;
2. Department of Occupational Health and Environment Health, School of Public Health, Anhui Medical University, Anhui, PR China;
3. Institute of Dermatology, Anhui Medical University, Anhui, PR China;
4. Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK