Expression of Concern: Effect of three different forms of handling on the variation of aggression-associated parameters in individually and group-housed male C57BL/6NCrl mice.

This document is an expression of concern from the journal PLoS ONE regarding an article titled "Effect of three different forms of handling on the variation of aggression-associated parameters in individually and group-housed male C57BL/6NCrl mice." The concerns raised include missing data, reporting of statistical analysis, and values in Table 1. The journal requested additional details and data availability from the authors, but they did not respond. Due to unresolved concerns, the journal issued this expression of concern. [Extracted from the article]