| Study | Reason for exclusion |
|---|---|
| Abdalla 2016 | Wrong patient population |
| Agarwal 2017 | CUS not performed by frontline non‐radiologist physicians |
| Donmez 2012 | CUS not performed by frontline non‐radiologist physicians |
| Ezzat 2018 | Wrong study design |
| Heydari 2014 | Missing CUS/CXR/CT/TT data |
| Kaya 2015 | Missing CUS/CXR/CT/TT data |
| Ku 2013 | Missing CUS/CXR/CT/TT data |
| Mumtaz 2016 | CUS not performed by frontline non‐radiologist physicians |
| Nandipati 2011 | Missing CUS/CXR/CT/TT data |
| Subramaniam 2017 | CUS not performed by frontline non‐radiologist physicians |
| Ziapour 2015 | Missing CUS/CXR/CT/TT data |
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