aLee Kong Chian School of Medicine
cRespiratory Medicine Service, Department of Paediatrics
dCardiology Service, Department of Paediatric Subspecialties, KK Women’s and Children’s Hospital
eGenome Institute of Singapore
fCardiovascular Research Institute, National University of Singapore, National University Health System, Singapore, Singapore.
Received 22 August 2017 Accepted 13 February 2019
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Correspondence to Saumya Shekhar Jamuar, MBBS, MRCPCH, Department of Paediatrics, KK Women’s and Children’s Hospital, 100 Bukit Timah Road, Singapore 229899, Singapore, Tel: +65 63941129; fax: +65 62917923; e-mail: firstname.lastname@example.org