About the Authors
Department of Nutrition and Food Hygiene, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
Department of Community Medicine, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
Discipline of Medicine, University of Adelaide, Adelaide, Australia
The authors have declared that no competing interests exist.
Conceived and designed the experiments: HZ ZS AH. Performed the experiments: HZ ZS BY YD GW. Analyzed the data: HZ. Contributed reagents/materials/analysis tools: HZ. Wrote the paper: HZ.