Muhammad, Sajjad
Lehecka, Martin
Niemelä, Mika
Funding for this research was provided by:
University of Helsinki including Helsinki University Central Hospital
Article History
Received: 14 March 2019
Revised: 8 April 2019
Accepted: 8 May 2019
First Online: 22 May 2019
Compliance with ethical standards
:
: All procedures performed in this study involving human participants were in accordance with the ethical standards of the research committee of University of Helsinki and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. An approval from local ethical committee and consent for retrospective analysis of videos were not necessary.
: All patients received written informed consent for publication of data according to local standard.
: The authors declare that they have no conflict of interest.