老师好，写了一篇meta分析，关于异质性做了亚组分析和敏感性分析，编辑意见“ This issue has been addressed by the authors, although the source of heterogeneity has not been determined. In this regard, performing meta-regression could identify the exact source of heterogeneity.”。请问meta回归是不是要求文章数量大于10？如果做的话，只能用stata做吗？我用stata做不出来图。谢谢老师