Study	Reason for exclusion
Daneshmand 2018	Wrong setting (surveillance)
Daniltchenko 2004	Duplicate
Doehn 2014	Wrong setting (diagnostic test accuracy)
Doisy 2019	Wrong study design (cross‐over trial)
Drejer 2020	Wrong setting (surveillance)
DRKS00000142	Wrong setting (wrong comparator)
EUCTR2004‐002259‐15‐AT	Duplicate
EUCTR2012‐000559‐15‐FI	Duplicate
EUCTR2013‐003898‐98‐IT	Duplicate
EUCTR2015‐000436‐15‐DK	Wrong setting (surveillance)
Filbeck 2003	Duplicate
Fradet 2007	Wrong setting (surveillance)
Gallagher 2017	Wrong study design (non‐randomized trial)
Geavlete 2009	Wrong study design (non‐randomized trial)
ISRCTN14275387	Duplicate
JPRN‐UMIN000001337	Wrong study design (non‐randomized trial)
JPRN‐UMIN000008176	Duplicate
JPRN‐UMIN000009093	Wrong study design (non‐randomized trial)
JPRN‐UMIN000010798	Wrong study design (non‐randomized trial)
JPRN‐UMIN000031471	Wrong study design (non‐randomized trial)
JPRN‐UMIN000035712	Wrong study design (non‐randomized trial)
Lipiński 2008	Wrong study design (non‐randomized trial)
Lykke 2015	Wrong study design (non‐randomized trial)
Madej 2009	Wrong study design (non‐randomized trial)
NCT00052637	Wrong study design (non‐randomized trial)
NCT00412971	Duplicate
NCT00785694	Withdrawn study (rejected ethics approval in UK and Netherlands)
NCT01166230	Duplicate
Otto 2009	Duplicate
Rolevich 2019	Wrong study design (post hoc analysis)