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Article History

Received: 9 November 2017

Accepted: 13 November 2018

First Online: 13 December 2018

Ethics approval and consent to participate

: This study was approved by the Ethics Committees of Peking University 1st Hospital, Xi’an Jiaotong University 1st Hospital and The Second Hospital of Nanjing, Affiliated to Medical School of Southeast University. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written informed consent was obtained from all individual participants included in the study.

: All data published here are under the consent for publication.

: Yijie Zheng is employee of Abbott Laboratories. The other authors declare that they have no competing interests.

: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.