[1] Zhejiang Univ, Sch Med, Childrens Hosp, Dept Endocrinol, Hangzhou 310003, Zhejiang, Peoples R China
[2] Zhejiang Univ, Sch Med, Childrens Hosp, Dept Ultrason Diagnose, Hangzhou 310003, Zhejiang, Peoples R China
[3] Zhejiang Univ, Sch Med, Childrens Hosp, Zhejiang Key Lab Diag & Therapy Neonatal Dis, Hangzhou 310003, Zhejiang, Peoples R China
[4] Jilin Univ, Sch Pharm, Dept Biopharmaceut, Changchun 130023, Peoples R China