Bellos, I.
Fitrou, G.
Pergialiotis, V.
Perrea, D. N.
Daskalakis, G.
Article History
Received: 23 July 2018
Accepted: 29 October 2018
First Online: 3 November 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: The present systematic review is based on aggregated data that were retrieved from studies already retrieved. We did not collect individual patient data and did not have direct contact with patients included.