How to find medical literature, how to search for medical paper literature

Methods of Search.

i.The simplest and crudest way.

Just like Google and other search engines, enter keywords, add spaces between keywords, or search for the author's name, the title of the known literature, and pubmed will automatically correspond to the subject heading and author index to find relevant literature, this method is quite simple, but it cannot really find the required articles in a certain field.

ii.Use mesh

1.Select Mesh from the drop-down menu to the left of the search box

2.Enter the concept you're looking for, such as bacteriophage and click search

The sub-headings related to the subject line will be provided next.

Sub-headings are a kind of restriction on subject headings, such as adding restrictions on phages: phage**, phage toxicology, etc.

5.Click Add to Search Builder in the formula box on the right

6.Click Search PubMed below the formula box

If you need to search for a combination of concepts, you only need to repeat steps 1 to 5 after the fifth step, that is, after the formula about the first subject word has appeared in the formula box, the system connects the two subject words with the logical relationship "and" by default, and then search pubmed and you will get the intersection of the related content of the two subject headings.

On the left side, you can also add other restrictions, such as free article, publication time, etc.

That's it for a short time, it's just a preliminary experience, and I'm just a beginner.

This mini program is a medical vertical community forum, where you can find answers from many professionals, <>

Professional medical network databases include: China Biomedical Literature Database (CBM), National Library of Medicine, Netherlands Medical Abstracts Database (EMBASE), American Chemical Abstracts (CA), International Pharmaceutical Abstracts (IPA), and National Library of Medicine Toxicology Database (TOXLINE).

Commonly used search networks are: China National Knowledge Infrastructure (CNKI), VIP.com, Wanfang Database, Chaoxing Electronic Library, Chinese Science and Technology Journals Database (NSTL), National Science and Technology Book and Literature Center, Chinese Pharmaceutical Literature, and your university's library, Google, Soopat, USPTO, Daoke Baba, Douding.com, Little Wood Worm, Readshow.com, Free Resource Network, Science Citation Index, Elsevier Science, CDER, FDA, SFDA, etc., these are relatively easy to use**, and most of them are free.

1. Open the browser on the computer, and then enter the address of the home page in the browser address interface (of course, if you can write out the ** of the pubmed database, you can also directly enter the address into the browser address box), because the address is not allowed to be pasted here, so the address will not be put out, and everyone will get it according to the following process.

2. Enter the pubmed keyword in the search box, and then click the search button to search, and you can see the address of the first few **pubmed** in the search results.

<>5 here select the title and date two ranges to search, enter the keyword of the literature you want to search in the input box after title, select the time of publication of the literature in the second line, if you need more scope restrictions, you can click the + button behind the second line to add search scope restrictions.

6. While filling in the keywords in the search box, the entire search expression will be displayed in the search box above, which is displayed here: (it[title]) and ("2014"[date - publication] :3000"Shirt Meng [date - publication]).

<>7. After completing the above steps, then click the search button below to display the search results, jump to the search results interface, and display the search expression that just appeared in the search box, and the following is the searched literature.

The method of searching for literature with CNKI is as follows:1. First, enter CNKI in Sogou browser, and then click on the official website of CNKI.

2. Then you will jump to CNKI**.

To search for literature on CNKI, you must first register your own under the network environment where you have purchased the CNKI database, and then log in. Enter the keyword you want to find in the search bar on the homepage, and click search to see the relevant search content. If you are not satisfied with the search results, you can also refine the search results according to the year of the return and consolidation, the author's name, and other information.

When we use CNKI, the most commonly used is a box search, which is simple, crude, convenient and fast, and it is not easy to miss information, but there will also be a large number of search results, so that small partners can not find the literature resources they really need; Some partners may use advanced search, which will display the search results more accurately and in a smaller range.

The literature in the search results of CNKI is related to important data resources such as authors, **, publication time, databases, citations, and **, but don't just see the title and not pay attention to the information behind. Click on the document**, we can see the source of the World Movement document**.

Basic and Advanced Literature Search:

When using the retrieval tool to retrieve keywords, usually directly choose the default retrieval method, in fact, this is the most basic retrieval method, the retrieval of the literature resources can not grasp the key points, students need to carry out a large number of artificial screening work, and the retrieval tool usually provides advanced search, classification retrieval and other methods, such as advanced retrieval can input multiple search terms, the retrieval of the title contains single and multiple search terms of the subject literature, in the advanced retrieval can also enter the subject, author, literature **, etc., further narrowing the scope of the search; Classification and retrieval of different types of basic disciplines, by limiting the scope of search, by classifying and removing irrelevant literature, the purpose of accurate retrieval is achieved.

Literature Search Tools:

Graduate students are keen to dry Chinese databases, such as CNKI, Wanfang, etc., and often ignore the importance of English databases. Compared with dry Chinese literature, English literature has a certain degree and higher quality, representing the top and frontier of the discipline in some professional fields, such as web ofscience foreign literature retrieval database, keeping abreast of the frontier of the discipline, learning advanced foreign scientific and technological knowledge, and better serving its own scientific research. If the literature database resources ordered by your school are limited, you can use the literature party, which is a large-scale integrated library of literature resources, and the literature database resources you need can be basically obtained here.

1) Slicing, deleting, and replaceing. Divide the topic or the sentence you want to search for into words, and delete empty words, colloquial expressions, and overly broad words, and replace them with professional and clear words.

2) Clustering. Words with or the same meaning are combined to narrow the search scope of the literature.

Literature Search**:

Literature Party ** Tool (: Almost all Chinese and foreign database resources are integrated, covering all disciplines and various types of literature, and Chinese and foreign literature can be freely achieved at home (including the following key database resources).

CNKI: The world's largest Chinese database.

Wanfang Database: It is also a professional academic database in China on par with CNKI.

VIP: A large-scale Chinese journal literature service platform in China.

Web of Science: is an important database for global scholarly information.

Elsevier (ScienceDirect): is a world-renowned publisher of academic journals in the Netherlands. ScienceDirect is the world's largest full-text electronic resource database for science, technology and medicine.

SpringerLink: It is the world's largest academic resource platform in the field of science, technology and medicine (STM). Springer's e-book database includes a variety of Springer book products.

pubmed: is a free search engine that provides a database of biomedical searches and abstracts.

1. Use review data to track the literature. Medical literature review is an article written by medical professionals after collecting a large number of literature materials through analysis, synthesis, induction, classification, and then combining their own work and experience, to write a summary of a certain topic or new progress, and point out the direction of development, which has great reference value. When searching for medical literature, you can first find one or several latest review articles to read, and then follow up and review the relevant literature cited at the back of the review.

2. Use the search tool to find literature. It is a more common method to track the literature from the review and monograph, although this method is good, but due to the limitations of the review author and title, the literature is not complete, and sometimes the relevant review or monograph cannot be found at all, so the literature should be searched by using the search tool books. In contrast, the search tool is more comprehensive than the use of review data, and it is rarely missed.

Commonly used search tools include: index, abstract, table of contents, bibliography, etc.

3. Use several major journals to search for literature. It is difficult to include the latest medical literature obtained by review and search tools, because they are generally 1 or 2 years later than the original work published in the period, and in order to find the latest literature and research trends, it is also necessary to systematically consult the relevant major journals in recent years. The method of finding is to apply the subject index at the back of each volume, and if the volume is not complete, to consult it book by book.

In general, the methods of searching for literature using review data, search tools and major journals are complementary and can be selected as needed.

1. Shuncha method.

Starting from the starting year of the search topic, the search is carried out chronologically from far to near until the literature information found meets the requirements. The advantage of this method is that the recall rate is high, and the disadvantage is that it is time-consuming and laborious.

2. Retrospective method.

A method of retrospectively searching from near to far by using the references behind the existing literature. The advantage of this method is that it is intuitive, convenient, and can be traced back to a large number of references on a certain topic, which is a good way to expand the information source in the absence of a search tool or the search tool is incomplete, and the disadvantage is that the retrieval efficiency is low, the recall rate is low, and the missed detection rate is high.

3. Comprehensive law.

Also known as the round-robin method, the segmentation method or the alternating method, it is a combination of the commonly used method and the retrospective method. That is, the search tool and the scattered references at the back of the literature are used to trace, and the two methods are used alternately, until it is known, it can obtain a higher recall rate and accuracy rate.

4. Reverse check method.

A method of searching for literature from near to far in reverse time. This method is mostly used for new topics or old topics with new content, and it is necessary to have recently published literature in order to grasp the level of the topic and the research trend in the recent period. Therefore, the search can be aborted once the required literature information is available.

The advantage of this method is that it saves time, and the disadvantage is that it has a high rate of missed detections.

5. Spot check method.

According to the characteristics of the development of research topics, it is a method to seize the period of rapid development of the discipline and the publication of a large number of literatures, and to search year by year. The advantage of this method is that it can obtain more literature information with less retrieval time, and the disadvantage is that it must be familiar with the characteristics of discipline development as the premise, otherwise it is difficult to achieve the expected results.

According to the rules of the national standard, the literature in the library belongs to the "online electronic bulletin" of the scattered continent, and has no right to speak in academics, and can only be used for one's own reference. So "academic" is recommended. The reference method is as follows".

Tools Raw materials.

Computer browsers.

Method steps.

2. Select the literature information you want to add.

3. Click to open the selected document and click the word "Citation" in the upper right corner.

4. According to the requirements of the document, select the format of the reference, generally use the first format, click and copy it to your own imitation document.