1 Department of Laboratory Medicine, National University Hospital, Singapore. Electronic address: tploh@hotmail.com.
2 Department of Clinical Biochemistry, PathWest Laboratory Medicine, Fiona Stanley Hospital, Murdoch, WA, Australia.
3 Faculty of Medical Technology, Hanoi Medical University, Viet Nam; Department of Clinical Biochemistry, National Children's Hospital, Hanoi, Viet Nam.
4 Flinders University International Centre for Point-of-Care Testing, Flinders Health and Medical Research Institute, Adelaide, SA, Australia.
5 RMIT University, School of Health and Biomedical Sciences, Vic, Australia; Murdoch Children's Research Institute, Melbourne, Vic, Australia.
6 Biomedical Mass Spectrometry Unit, Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong.
7 Department of Biomedical and Clinical Sciences, Division of Clinical Chemistry and Pharmacology, Linkoping University, Linkoping, Sweden.
8 Department of Paediatrics, The University of Melbourne, Melbourne, Vic, Australia; Murdoch Children's Research Institute, Parkville, Vic, Australia. Electronic address: ronda.greaves@vcgs.org.au.