| Study | Reason for exclusion |
|---|---|
| Akashi‐Tanaka 2017 | Wrong intervention |
| Albain 2012 | Wrong study design |
| Anonymous 2001 | Wrong intervention |
| Buzdar 2004 | Wrong intervention |
| Cardoso 2001 | Wrong study design |
| Cresta 2001 | Wrong participant population |
| Earl 2003 | Wrong intervention |
| Fabiano 2002 | Wrong study design |
| Focan 2005 | Wrong participant population |
| Guarneri 2010 | Wrong intervention |
| Skarlos 2012 | Wrong intervention |
| SWOG S0800 | Wrong participant population |
| Thomas 2017 | Wrong intervention |
| Wildiers 2006 | Wrong intervention |
| Zoli 2005 | Wrong participant population |
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