Date	Event	Description
15 June 2018	New search has been performed	New study data were added, leading to a change to the conclusions of this review.
15 June 2018	New citation required and conclusions have changed	New searches were performed for this major update, and additional RCTs have contributed data (Dehghani Firouzabadi 2016; Eskandar 2016; Hosseini 2016; Huang 2016; Mostajeran 2017; Navali 2016).
22 June 2016	Amended	Links to an analysis and to a figure were inserted.