[1] Natl Univ Hlth Syst, Khoo Teck Puat Natl Univ Childrens Med Inst, Dept Neonatol, 1E Kent Ridge Rd,Level 12, Singapore 119228, Singapore
[2] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Paediat, Singapore, Singapore
[3] Singapore Resuscitat & First Aid Council, Paediat Subcomm, Neonatal Grp, Singapore, Singapore
[4] Singapore Gen Hosp, Dept Neonatal & Dev Med, Singapore, Singapore
[5] Duke NUS Med Sch, Singapore, Singapore
[6] Nanyang Technol Univ, Lee Kong Chian Sch Med, Singapore, Singapore
[7] KK Womens & Childrens Hosp, Dept Neonatol, Singapore, Singapore
[8] Kinder Clin Pte Ltd, Singapore, Singapore