1 Department of Tuberculosis Control, Institute of Laboratory Research, Shenzhen Center for Chronic Disease Control, Shenzhen 518020, Guangdong, China.
2 School of Public Health, Wuhan University, Wuhan 430071, Hubei, China.
3 National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Key Laboratory of Trace Element Nutrition of National Health Commission, Beijing 100050, China.