Some classes of information are from scope for PubMed, which include: book critiques, individual convention abstracts, obituaries and in memoriam content articles, news and announcements, and brief summaries of study content. More examples are included in XML Help for PubMed Data Vendors: What forms of articles are acknowledged?. MEDLINE Filters https://hbrcasesolution17266.bloggerchest.com/38314301/harvard-case-studies-an-overview