Funding for this research was provided by:
U.S. National Library of Medicine (T15LM011271)
Text and Data Mining valid from 2019-11-19
Received: 3 June 2019
Accepted: 12 November 2019
First Online: 19 November 2019
Compliance with ethical standards
: Dr. Beiqun Zhao is supported by the National Library of Medicine Training Grant [NIH Grant: T15LM011271]. The funding source had no role in the design and/or general conduct of this study; had no access to the data or role in data collection, management, analysis, or interpretation; had no role in the preparation, review, or approval of the manuscript; and had no role in the decision to submit the manuscript for publication. The coauthors have no financial or other conflicts of interest to disclose.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.