Slemp, Gavin R. http://orcid.org/0000-0002-6521-7273
Kern, Margaret L. http://orcid.org/0000-0003-4300-598X
Patrick, Kent J. http://orcid.org/0000-0001-7644-057X
Ryan, Richard M. http://orcid.org/0000-0002-2355-6154
Article History
First Online: 17 May 2018
Compliance with ethical standards
:
: Gavin R. Slemp declares that he had no conflict of interest. Margaret L. Kern declares that she had no conflict of interest. Kent J. Patrick declares that he had no conflict of interest. Richard M. Ryan declares that he had no conflict of interest.
: This article does not contain any original studies with human participants or animals performed by any of the authors. All included studies in this meta-analysis are available publicly. Any included study that was performed by the authors of this meta-analysis had obtained prior ethical approval from the relevant institutional review board (IRB).