Study	Reason for exclusion
Abbas 2016	Wrong intervention
Abbasi 2017	Wrong patient population
Abdel‐Aziz 2004a	Wrong intervention
Abdel‐Aziz 2004b	Wrong intervention
Aggarwal 2017	Wrong intervention
Ai 2018	Unable to access access full‐text
Akin 2005	Wrong comparator
Akin 2009	Wrong intervention
Arvidsson 2005	Wrong intervention
Ashok 1998a	Wrong intervention
Ashok 1998b	Wrong intervention
Ashok 2005	Wrong outcomes
Aubeny 1991	Wrong study design
Avraham 2012	Duplicate
Ayati 2013	Unable to access full text
Bachelot 1992	Wrong study design
Backman 2002	Unable to access full text
Baird 1995	Wrong intervention
Bartley 2002	Wrong intervention
Beckman 1997	Wrong intervention
Bhattacharya 2000	Duplicate
Bjorge 2001	Wrong intervention
Bond 2015	Duplicate
Cameron 2010	Wrong intervention
Cavet 2017	Wrong study design
Cavet 2018	Duplicate
Chen 2002	Unable to access full text
Chen 2013	Wrong intervention
Cheng 2005	Unable to access full text
Colleselli 2015	Wrong patient population
Constant 2014	Wrong intervention
Creinin 2004a	Duplicate
Creinin 2005	Wrong intervention
CTRI/2016/12/007516	Wrong intervention
CTRI/2018/01/011157	Wrong comparator
Dabash 2009	Wrong intervention
Dabash 2012	Wrong intervention
Dalenda 2010	Wrong comparator
De Nonno 2000	Wrong intervention
Ding 2005	Unable to access full text
Dzuba 2016a	Wrong intervention
Dzuba 2016b	Duplicate
el‐Refaey 1994	Wrong intervention
Elul 1999	Wrong comparator
Endler 2019	Wrong intervention
EUCTR2009‐010277‐21‐GB 2009	Wrong intervention
EUCTR2018‐003675‐35‐SE 2018	Wrong intervention
Frank 2015	Unable to access full text
Friedlander 2016	Duplicate
Friedlander 2017a	Duplicate
Friedlander 2017b	Duplicate
Garbin 2006	Wrong intervention
Goel 2010	Wrong intervention
Goh 2006	Wrong intervention
Goldstone 2012	Wrong intervention
Goss 2004	Unable to access full text
Gupta 2007	Wrong intervention
Halleb 2012	Wrong intervention
Hamoda 2004	Wrong study design
Hamoda 2005a	Wrong intervention
Hamoda 2005b	Wrong intervention
Hayes 2011	Wrong intervention
Hedqvist 2016	Wrong study design
Honkanen 2004	Wrong study design
ICMR Task Force 2000	Wrong comparator
Ireland 2015	Wrong intervention
ISRCTN97410750	Wrong intervention
Iversen 2003	Wrong intervention
Jackson 2011	Wrong study design
Jensen 1998	Wrong intervention
Joensuu‐Manninen 2010	Wrong intervention
Jorgensen 2007	Unable to access full text
Kailash 2015	Wrong intervention
Karasahin 2011	Wrong intervention
Kawonga 2008	Wrong intervention
Kelly 2010	Wrong comparator
Kopp Kallner 2010	Wrong intervention
Kopp Kallner 2012a	Wrong intervention
Kopp Kallner 2012b	Duplicate
Kopp Kallner 2012c	Duplicate
Largeaud 2004	Unable to access full text
Lelaidier 1993	Wrong patient population
Li 2007	Wrong intervention
Li 2009	Wrong comparator
Li 2010	Unable to access full text
Li 2012	Wrong comparator
Liang 2005	Unable to access full text
Liao 2004	Wrong intervention
Lokeland 2012	Wrong intervention
Lokeland 2014	Duplicate
Lord 2018	Wrong study design
Lou 2015	Unable to access full text
Ma 2008	Unable to access full text
Mamers 1997	Wrong intervention
Mukhi 2014	Wrong outcomes
Nawaz 2012	Wrong intervention
NCT00269568	Wrong intervention
NCT00286208	Wrong intervention
NCT00330993	Wrong intervention
NCT00386867	Wrong intervention
NCT00482209	Wrong intervention
NCT00769912	Wrong patient population
NCT00870272	Wrong intervention
NCT00920465	Wrong intervention
NCT00997074	Duplicate
NCT00997347	Wrong intervention
NCT01156688	Wrong intervention
NCT01457521	Duplicate
NCT01856985	Wrong intervention
NCT01966874	Wrong intervention
NCT02018796	Wrong intervention
NCT02314754	Duplicate
NCT02720991	Wrong intervention
NCT02745093	Wrong intervention
NCT02782169	Duplicate
NCT02981030	Wrong intervention
NCT03659045a	Wrong intervention
NCT03727308	Wrong intervention
Ngo 2011	Wrong study design
Pay 2018	Wrong intervention
Priyanka 2014	Wrong intervention
Pud 2005	Wrong patient population
Raghavan 2012	Wrong intervention
Ravn 2005	Wrong intervention
Raymond 2015a	Wrong intervention
Raymond 2015b	Wrong intervention
Robson 2009	Wrong comparator
Rosenblatt 1992	Wrong intervention
Rosseland 2011	Wrong study design
Sang 1994a	Wrong intervention
Sang 1994b	Wrong intervention
Saurel‐Cubizolles 2015	Wrong intervention
Schaff 2000	Wrong intervention
Shannon 2005	Wrong intervention
Shannon 2006	Wrong intervention
Sherman 2018	Unable to access full text
Shi 2018	Unable to access full text
Shikha 2011	Wrong intervention
Singh 2005	Wrong intervention
Socolov 2016	Wrong intervention
Spitz 1998	Wrong intervention
Stojnic 2006	Wrong intervention
Suhonen 2011a	Wrong study design
Suhonen 2011b	Wrong study design
Tang 2002	Wrong intervention
Taylor 2013	Wrong study design
Teal 2007	Wrong study design
Thiebaut 2017	Unable to access full text
Thong 1992	Wrong intervention
Ulmann 1994	Unable to access full text
Von Hertzen 2000	Wrong intervention
von Hertzen 2004	Wrong intervention
Von Hertzen 2008	Wrong intervention
Weeks 1995	Wrong intervention
Wells 1991	Wrong study design
Wen 2010	Unable to access full text
Westhoff 2000	Wrong study design
Westhoffa 2000	Wrong intervention
WHO 2000	Duplicate
Wiebe 2018	Unable to access full text
Xu 2007	Unable to access full text
Zhu 2008	Unable to access full text
Zou 2004	Unable to access full text