1. Department of Clinical Laboratory, First Affiliated Hospital of Dalian Medical University, Dalian 116011, PR China
2. Institute for Chronic and Non-communicable Disease Prevention and Control, Dalian Center for Disease Prevention and Control, Dalian 116021, PR China
3. Department of Clinical Nutrition, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, PR China
4. Department of Biotechnology, Dalian Medical University, Dalian 116044, PR China