[1] Natl Taiwan Univ Hosp, Dept Pediat, Taipei, Taiwan
[2] Natl Taiwan Univ, Res Ctr Genes Environm & Human Hlth, Taipei 10764, Taiwan
[3] Natl Taiwan Univ, Inst Epidemiol & Prevent Med, Coll Publ Hlth, Taipei 10764, Taiwan
[4] Chang Gung Mem Hosp, Kaohsiung Med Ctr, Dept Pediat, Kaohsiung, Taiwan
[5] Chang Gung Univ, Coll Med, Dept Pediat, Kaohsiung, Taiwan
[6] Chang Gung Mem Hosp, Dept Pediat, Tao Yuan, Taiwan
[7] Mackay Mem Hosp, Dept Pediat, Taipei, Taiwan
[8] Taichung Vet Gen Hosp, Dept Pediat, Taichung, Taiwan
[9] Taichung Vet Gen Hosp, Dept Pediat, Taipei, Taiwan
[10] Natl Yang Ming Univ, Dept Med, Taipei 112, Taiwan
[11] Natl Yang Ming Univ, Inst Publ Hlth, Taipei 112, Taiwan
[12] Shin Kong Wu Ho Su Mem Hosp, Dept Pediat, Taipei, Taiwan
[13] St Josephs Hosp, Dept Pediat, Huwei, Taiwan
[14] Natl Cheng Kung Univ Hosp, Dept Pediat, Tainan 70428, Taiwan
[15] China Med Univ Hosp, Dept Pediat, Taichung, Taiwan
[16] Kaohsiung Med Univ Hosp, Dept Pediat, Kaohsiung, Taiwan
[17] Kaohsiung Municipal Hsiaokang Hosp, Dept Pediat, Kaohsiung, Taiwan
[18] Chi Mei Med Ctr, Dept Pediat, Tainan, Taiwan
[19] Bureau Hlth Promot, Dept Hlth, Taipei, Taiwan