Types of medical literature

Medical literature can be classified by content, form and application (table 1). At present, printed documents are widely used, so the most practical is the classification of printed documents. As a regular and continuous publication, it contains the most information and is the most important source of information. Most of them are the most original documents that have not been sorted out, and there are also three kinds of documents such as comments. There are about 300 official medical journals published in China. Can be divided into several categories. ① Journals (three documents) used for retrieval have various titles, indexes and abstracts. (2) Original journals, which mainly publish scientific research academic papers, technical reports, experimental reports and investigation and research materials, such as Acta or more explanations or translations with clinical case analysis and a certain length, such as magazines. (3) Comprehensive review journals, such as Clinical Medicine in North America and Latest Medicine in Japan. Yearbooks also fall into this category.

Books UNESCO 1964 stipulates that printed matter with more than 49 pages is called a book and printed matter with 5-49 pages is called a booklet, but the regulations vary from country to country. Generally, it refers to binding into a book and systematically describing the article in chapters. Generally, the contents are summarized and reorganized publications, which belong to three documents. The content system is in-depth, but the publishing cycle is long, so the information contained in the periodicals published at the same time is newer than that in books. The types of books include encyclopedias, manuals, dictionaries, guides, monographs (reflecting the whole picture of a certain subject, in which there are a lot of concentrated materials) and teaching materials (many standard books of a certain subject are also named after this, which are actually reference books, not teaching books); Other comprehensive books have the names of the latest progress, progress and contemporary trends. Documents other than periodicals and books. Such as monographs or conference proceedings (conference materials compiled and published after national or international conferences reflect the work of contemporary famous scientists and have high reference value; Some are published in the form of books, some are attached to publications or published separately as special issues and supplements), literature compilations (periodicals and papers published at conferences), scientific and technological reports (official reports on research on a certain subject), government publications, patent documents, standard documents, catalogues or samples of product information, dissertations, translated documents (such as scientific news translated and published in China and selected publications published in American medical journals) and technical files.