Date	Event	Description
15 June 2020	New citation required and conclusions have changed	The addition of 24 new studies has led to a change in the conclusions of the review.
15 June 2020	New search has been performed	Twenty‐four new trials have been included (Aflatoonian 2016; Berntsen 2020; Eskew 2018; Frantz 2019; Gurgan 2019; Hilton 2019; Hur 2012; Izquierdo Rodriguez 2020; Lensen 2019; Liu 2017; Mackens 2020; Maged 2018; Mak 2017; Merriam 2017; Metwally 2020; Olesen 2019; Pecorino 2018; Shahrokh‐Tehraninejad 2016; Sherif 2018; Tang 2020; van Hoogenhuijze 2020; Wolff 2018; Xu 2015; Zygula 2016) along with full published versions of two studies that were included as abstracts or unpublished data in the previous view (Polanski 2015; TK 2017). The search was updated in February 2019 and again in June 2020.