In the original version of the article, the terminology used to describe the validation process. In the article, the validation cohort was referred to as an “external validation.” As noted by a reader, this cohort does not fully meet the strict definition of external validation involving a completely independent population. Rather, it represents an independent cohort from within the same institutional population. The terminology used in the article was consistent with approaches previously applied in the literature [1]; however, the authors acknowledge that this wording may lead to misunderstandings. This clarification does not affect the results, interpretation, or conclusions of the study. This has been updated in this article.
Correction: Development and external validation of a nomogram predicting cancer-specific mortality-free survival after trimodal therapy in muscle-invasive bladder cancer (World Journal of Urology, (2026), 44, 1, (111), 10.1007/s00345-026-06217-3)
Palumbo C.;
2026-01-01
Abstract
In the original version of the article, the terminology used to describe the validation process. In the article, the validation cohort was referred to as an “external validation.” As noted by a reader, this cohort does not fully meet the strict definition of external validation involving a completely independent population. Rather, it represents an independent cohort from within the same institutional population. The terminology used in the article was consistent with approaches previously applied in the literature [1]; however, the authors acknowledge that this wording may lead to misunderstandings. This clarification does not affect the results, interpretation, or conclusions of the study. This has been updated in this article.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
