Funding for this research was provided by:
Key Clinical Specialty Discipline Construction Program of Fujian (No. 2014YZ0003)
Article History
Received: 12 March 2019
Accepted: 5 July 2019
First Online: 17 July 2019
Change Date: 19 February 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1007/s00701-021-04734-1
Compliance with ethical standards
:
: De-Zhi Kang received grants from the Key Clinical Specialty Discipline Construction Program of Fujian, P.R.C., and the major project of Fujian Provincial Department of Science and Technology (No. 2014YZ0003). All other authors declare that they have no conflict of interest.
: 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. All procedures in the study were approved by the Ethics Committee of the First Affiliated Hospital of Fujian Medical University (Fujian, China).
: Informed consent was obtained from all individual participants included in the study.