Study	Reason for exclusion
Aghadavoudi Jolfaei 2012	Wrong intervention
Aronson 2011	Wrong study design
Bagheri 2012	Wrong intervention
Bertolissi 1996	Wrong intervention
Brown 2019	Wrong population
Charlson 2007	Wrong intervention
CTRI/2018/01/011487	Wrong intervention
Damén 2021	Wrong intervention
Ge 2018	Wrong study design
Getsios 2013	Wrong intervention
Goepfert 2013	Wrong intervention
Hamada 2004	Wrong intervention
IRCT2015112916151N4	Wrong population
Kapoor 2008	Wrong intervention
Kapoor 2016	Wrong intervention
Mölström 2017	Wrong intervention
NCT01408420	Wrong intervention
NCT04005105	Wrong intervention
Paulson 2019	Wrong study design
Siepe 2011	Wrong intervention
Sirvinskas 2008	Wrong intervention
Urzua 1992	Wrong intervention