Study	Reason for exclusion
Abraham 2018	Comparison of a single‐step medium or sequential culture media
Akbari 2017	Non‐RCT, in vitro study
Alhilali 2019	Non‐RCT, cohort study of IL‐5 as a predictor of ICSI outcome
Berkkanoglu 2006	Comparison: Flushing vs. No Flushing with culture media (Cervical canal irrigation in both groups )
Cuman 2013	Non‐RCT, in vitro study
de los Santos 2015	Non‐RCT, in vitro study
Eftekhar 2018	Use of platelet rich plasma and HRT vs. HRT only
Fawzy 2018	Comparison of temperatures (36.5 C versus 37 C) for human embryo culture
Giacomini 2017	Non‐RCT, in vitro study
Goto 2007	Quasi‐randomized study
Goto 2018	Non‐RCT
Hafezi 2018	Intrauterine human chorionic gonadotropin flushing
Hambiliki 2011	Comparison of 2 different media systems on embryo morphology and development
Hamdi 2018	Flushing the endometrial cavity with follicular fluid
Hashish 2014	Flushing the endometrial cavity with follicular fluid
Herbemont 2018	Post‐warming culture duration comparison
Inoue 2014	Retrospective study, co‐administration of prednisolone
IRCT20160815029374N5	Intrauterine infusion of autologous platelet‐rich plasma on day 11 of freeze embryo transfer cycle
Kapiteijn 2006	Non‐RCT, in vitro study
Kapiteijn 2008	Non‐RCT
Khan 1991	Use of human albumin as a replacement for serum
Kulmann 2018	Culture of cumulus‐oocyte complexes (COCs) after oocyte pick‐up (OPU) in media supplemented with amino acids
Labied 2019	Paraffin and mineral oil covering on early human embryo culture
Le Saint 2019	Autologous endometrial cell co‐culture vs. conventional embryo culture
Letterie 2003	Non‐RCT
Lopez 2019	Endometrial use of autologous platelet‐derived microparticles
Madkour 2018	Addition of autologous follicular fluid / IVM results
Mayer 2015	Intracervical and intravaginal application of seminal plasma on the endometrium
Melnick 2015	Retrospective cohort study
Nazari 2019	Autologous platelet ‐rich plasma therapy
NCT04077970	Intrauterine Flushing With Follicular Fluid Plus Granulosa Cells
Obidniak 2017	Autologous platelet ‐rich plasma therapy
Ozcan 2019	Use of microfluidic sperm sorting for the sperm selection
Reilly 2019	Use of Lipiodol prior to fresh embryo transfer
Sigalos 2018	Use of two different volumes (20‐25 vs 40‐45 mul) of media used for embryo transfer
Tabiasco 2009	Non‐RCT
Valojerdi 2006	use of Embryo Glue
von Wolff 2009	Intracervical and intravaginal application of seminal plasma on the endometrium
Zadehmodarres 2017	Endometrial administration of autologous platelet‐rich plasma, Non‐RCT