1. National
Key Disciplines of Nutrition and Food Hygiene, Department of Nutrition
and Food Hygiene, School of Public Health, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin 150081, P. R. China
2. Department
of Pediatrics, The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, 148 BaoJian Street, Nan Gang District, Harbin, Heilongjiang
Province, P. R. China