1 Department of Pathology, National University Health System, Singapore.
2 Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore.
3 Children's Cancer Institute, Department of Pediatrics, Southern Philippines Medical Center, St Jude Global Partner, Davao City, Philippines.
4 Department of Pathology, National University Health System, Singapore; Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore; Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore. Electronic address: yingting_mok@nuhs.edu.sg.