Department of Nutrition and Food Hygiene;
School of Public Health;
Peking University;
Beijing 10083;
China;
Department of Nutrition;
Shenzhen Hospital of Peking University;
Shenzhen 518036;
Guangdong;
China.;
Department of Endocrinology;
Shenzhen Hospital of Peking University;
Shenzhen 518036;
Guangdong;
China.;
Department of Ultrasound Division;
Shenzhen Hospital of Peking University;
Shenzhen 518036;
Guangdong;
China.;