Text and Data Mining valid from 2019-04-05
Received: 15 November 2017
Accepted: 24 March 2019
First Online: 5 April 2019
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: Andrija Babic, Tina Poklepovic Pericic and Livia Puljak are volunteer members of Cochrane Croatia. Livia Puljak is a volunteer section editor of the BMC Medical Research Methodology, but was not involved in any way in handling of this manuscript. All other authors declare they have no competing interests.
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