Some categories of written content are out of scope for PubMed, for instance: guide reviews, specific meeting abstracts, obituaries As well as in memoriam article content, news and announcements, and transient summaries of exploration articles or blog posts. Additional examples are A part of XML Help for PubMed Data Companies: https://help-with-case-study93852.mdkblog.com/44290086/how-case-study-solution-can-save-you-time-stress-and-money