[1] Sun Yat Sen Univ, Affiliated Hosp 3, Child Dev & Behav Ctr, Guangzhou, Peoples R China
[2] Southern Med Univ, Shenzhen Hosp, Rehabil Med Dept, Shenzhen, Peoples R China
[3] Sun Yat Sen Univ, Affiliated Hosp 6, Dept Pediat, Guangzhou, Peoples R China
[4] Sun Yat Sen Univ, Affiliated Hosp 3, Child Dev & Behav Ctr, 2693 Kai Chuang Ave, Guangzhou, Peoples R China
[5] Southern Med Univ, Shenzhen Hosp, 1333 Xinhu Rd, Shenzhen, Peoples R China