Clarifying Methodological Concerns in the Study of Sacrococcygeal Teratomas: Cohort or Ecological Study?

In brief

This correspondence addresses methodological concerns regarding a Danish retrospective study on sacrococcygeal teratomas in pediatric patients. The authors discuss the distinction between cohort and ecological study designs, raising questions about the appropriate classification and analytical approach for registry-based pediatric tumor research.

Written by the GCMD Library team from the article.