Retroperitoneal leiomyosarcoma (RLS) is a rare and aggressive subtype of soft tissue sarcoma with limited population-level evidence guiding surgical decision-making. This study aimed to assess the ...

We have already explored how we can mitigate bias caused by confounding variables in observational studies using propensity score matching (PSM) 1 and propensity score weighting (PSW) 2. However, any ...