[1] Jinan Univ, Affiliated Hosp 1, Dept Neonatol, Guangzhou 510630, Guangdong, Peoples R China
[2] Guangzhou Med Univ, Affiliated Hosp 3, Dept Pediat, Guangzhou 510150, Guangdong, Peoples R China
[3] Affiliated Southern Med Univ, Shenzhen Maternal & Child Healthcare Hosp, Dept Neonatol, Shenzhen 518028, Guangdong, Peoples R China
[4] Foshan Maternal & Childs Hosp, Dept Neonatol, Foshan 528000, Guangdong, Peoples R China
[5] Women & Children Hosp Guangdong Prov, Dept Neonatol, Guangzhou 510010, Guangdong, Peoples R China
[6] Shenzhen Peoples Hosp, Dept Neonatol, Shenzhen 518020, Guangdong, Peoples R China
[7] Meizhou Peoples Hosp, Dept Neonatol, Meizhou 514031, Guangdong, Peoples R China
[8] Guangzhou Women & Childrens Med Ctr, Dept Neonatol, Guangzhou 510120, Guangdong, Peoples R China
[9] Southern Med Univ, Nanfang Hosp, Dept Neonatol, Guangzhou 510515, Guangdong, Peoples R China
[10] Boai Hosp Zhongshan, Dept Neonatol, Zhongshan 528400, Guangdong, Peoples R China
[11] Zhuhai Matern & Child Hlth Hosp, Dept Neonatol, Zhuhai 519001, Guangdong, Peoples R China
[12] Huizhou Municipal Cent Hosp, Dept Neonatol, Huizhou 516001, Guangdong, Peoples R China
[13] Dongguan Matern & Child Hlth Hosp, Dept Neonatol, Dongguan 523002, Guangdong, Peoples R China
[14] Sun Yat Sen Univ, Affiliated Jiangmen Hosp, Jiangmen Cent Hosp, Dept Neonatol, Jiangmen 529000, Guangdong, Peoples R China
[15] Yuebei Peoples Hosp, Dept Neonatol, Shaoguan 512026, Guangdong, Peoples R China
[16] Guangdong Second Prov Peoples Hosp, Dept Neonatol, Guangzhou 510317, Guangdong, Peoples R China
[17] Southern Med Univ, Zhujiang Hosp, Dept Pediat, Guangzhou 510280, Guangdong, Peoples R China
[18] Guangdong Med Univ, Affiliated Hosp, Dept Pediat, Zhanjiang 524001, Guangdong, Peoples R China
[19] Shantou Univ, Med Coll, Affiliated Hosp 2, Dept Neonatol, Shantou 515041, Guangdong, Peoples R China
[20] Jinan Univ, Affiliated Dongguan Hosp, Med Coll, Dept Neonatol, Dongguan 523900, Guangdong, Peoples R China
[21] Dongguan Peoples Hosp, Dept Pediat, Dongguan 523000, Guangdong, Peoples R China
[22] Sun Yat Sen Univ, Affiliated Hosp 1, Dept Neonatol, Guangzhou 510080, Guangdong, Peoples R China
[23] Shantou Univ, Med Coll, Affiliated Hosp 1, Dept Neonatol, Shantou 515041, Guangdong, Peoples R China
[24] Nanhai Dist Peoples Hosp Foshan, Dept Neonatol, Foshan 528200, Guangdong, Peoples R China
[25] Huadu Dist Peoples Hosp Guangzhou, Dept Neonatol, Guangzhou 510800, Guangdong, Peoples R China
[26] First Peoples Hosp Zhaoqing, Dept Pediat, Zhaoqing 526020, Guangdong, Peoples R China