在1974年，霍金准备向Nature期刊提交他的论文《黑洞爆炸？》（"Black Hole Explosions?"）。

The Nature journals and other journals published ... All manuscript files, including the cover letter. In virtually all cases, referee comments to the author for this and all previous versions ...

Nature Immunology, like other Nature-branded ... that is expected for papers published in top-tier journals. The cover letter initiates a dialog between the authors and the editors.