Funding for this research was provided by:
Project of Key Discipline Group of Shanghai Pudong New Area Health and Family Planning Commission (PWZxq2017-03)
Three-year Action Plan of Clinical Skills and Innovation of Shanghai Hospital Development Center (16CR3029A)
Project of Medical Guidance of Foundation of Shanghai Committee of Science and Technology (17411966900)
Article History
Received: 23 May 2018
First Online: 4 January 2019
Compliance with ethical standards
:
: The authors declare no competing financial interests.
: The Ethics Committee of Shanghai Jiao Tong University Affiliated Sixth People’s Hospital concluded that no approval was necessary for this study based on its retrospective design. Data were analyzed anonymously; all patients approved the publication of the results of this study by oral consent. The oral consent approval was documented in the patients’ files. This was approved by the Ethics Committee of Shanghai Jiao Tong University Affiliated Sixth People’s Hospital. All clinical investigations were conducted in accordance with the guidelines of the Declaration of Helsinki.