About the Authors

Eric Z. Chen

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China

Rossa W. K. Chiu

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China

Hao Sun

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China

Ranjit Akolekar

Affiliation Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, United Kingdom

K. C. Allen Chan

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China

Tak Y. Leung

Affiliation Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong SAR, China

Peiyong Jiang

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China

Yama W. L. Zheng

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China

Fiona M. F. Lun

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China

Lisa Y. S. Chan

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China

Yongjie Jin

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China

Attie T. J. I. Go

Affiliation VU University Medical Center, Amsterdam, The Netherlands

Elizabeth T. Lau

Affiliation Tsan Yuk Hospital, Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong SAR, China

William W. K. To

Affiliation United Christian Hospital, Hong Kong SAR, China

Wing C. Leung

Affiliation Kwong Wah Hospital, Hong Kong SAR, China

Rebecca Y. K. Tang

Affiliation Pamela Youde Nethersole Eastern Hospital, Hong Kong SAR, China

Sidney K. C. Au-Yeung

Affiliation Tuen Mun Hospital, Hong Kong SAR, China

Helena Lam

Affiliation Princess Margaret Hospital, Hospital Authority, Hong Kong SAR, China

Yu Y. Kung

Affiliation YY Kung Medical Centre, Hong Kong SAR, China

Xiuqing Zhang

Affiliations Joint Chinese University of Hong Kong-Beijing Genomics Institute Genome Research Centre, Li Ka Shing Institute of Health Sciences, Hong Kong SAR, China, Beijing Genomics Institute at Shenzhen, Shenzhen, China

John M. G. van Vugt

Affiliation VU University Medical Center, Amsterdam, The Netherlands

Ryoko Minekawa

Affiliation Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, United Kingdom

Mary H. Y. Tang

Affiliation Tsan Yuk Hospital, Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong SAR, China

Jun Wang

Affiliations Joint Chinese University of Hong Kong-Beijing Genomics Institute Genome Research Centre, Li Ka Shing Institute of Health Sciences, Hong Kong SAR, China, Beijing Genomics Institute at Shenzhen, Shenzhen, China

Cees B. M. Oudejans

Affiliation VU University Medical Center, Amsterdam, The Netherlands

Tze K. Lau

Affiliation Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong SAR, China

Kypros H. Nicolaides

Affiliation Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, United Kingdom

Y. M. Dennis Lo

loym@cuhk.edu.hk

Affiliations Centre for Research into Circulating Fetal Nucleic Acids, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China, Department of Chemical Pathology, The Chinese University of Hong Kong, Hong Kong SAR, China, Joint Chinese University of Hong Kong-Beijing Genomics Institute Genome Research Centre, Li Ka Shing Institute of Health Sciences, Hong Kong SAR, China

Competing Interests

The authors have read the journal's policy and have the following conflicts: RWKC, YWLZ, KCAC, FMFL and YMDL have filed patent applications on the detection of fetal nucleic acids in maternal plasma for noninvasive prenatal diagnosis. Part of this patent portfolio has been licensed to Sequenom. YMDL is a consultant to and holds equities in Sequenom. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: RWKC HS YMDL. Performed the experiments: EZC YWLZ FMFL LYSC YJ. Analyzed the data: EZC HS KCAC PJ. Contributed reagents/materials/analysis tools: RA TYL ATJIG ETL WWKT WCL RYKT SKCA-Y HL YYK JMGvV RM MHYT TKL CBMO KHN XZ JW. Wrote the paper: EZC RWKC HS YMDL. Designed the clinical recruitment protocols: TYL MHYT CBMO TKL KHN.