^pDepartment,;
Children's;
Hospital;
of;
Zhejiang;
University;
School;
of;
Medicine,Hangzhou,Zhejiang;
310003,China;
^pDepartment,Children's;
Hospital;
of;
Fudan;
University,Shanghai;
201102,China;
^pDepartment,First;
Affiliated;
Hospital;
of;
Jilin;
University,Changchun,Jilin;
130021,China;
^pDepartment,Guiyang;
Children's;
Hospital,Guiyang,Guizhou;
550003,China;
^pDepartment,;
Zhengzhou;
Children's;
Hospital,Zhengzhou,Henan;
450053,China;
^pDepartment,;
Guangzhou;
Children's;
Hospital,Guangzhou,Guangdong;
510120,China;
^pDepartment,Gansu;
Provincial;
Women;
and;
Children's;
Hospital,Lanzhou,Gansu;
730050,China;
呼吸系统; 新生儿; 早产儿; 疾病; 流行病学; 多中心; Version; 晚清;