| Date | Event | Description |
|---|---|---|
| 14 October 2019 | New citation required but conclusions have not changed | The addition of new studies has not led to changes in our conclusion. |
| 14 October 2019 | New search has been performed | Added new studies: Darwish 2016; Elgafor 2013; El‐Sayed 2017; Giampaolino 2016; Ibrahim 2017; Liu 2015; Nasr 2013; Nasr 2015; Rezk 2016; Sorouri 2015; Yadav 2018; Zakherah 2011, and amendments to review text. Placed Abu Hashim 2010a and Abu Hashim 2011a to awaiting classification. |
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