Funding for this research was provided by:
European Society of Endodontology (Research Grant 2015)
Text and Data Mining valid from 2018-03-09
Received: 11 May 2017
Accepted: 28 February 2018
First Online: 9 March 2018
Ethics approval and consent to participate
: Informed consent of donors was given and all protocols were authorised by the Ethics Committee of the Medical University of Vienna, Vienna, Austria (#631/2007).
: Not applicable.
: The authors declare that they have no competing interests.
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