Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3122
Function: getPubMedXML
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
This paper is the third in a series of three, intended as a tutorial in the use of PubMed/Medline for an inexperienced user. The papers have the following contents: I--a description of NLM, Medline, PubMed and the system of Medical Subject Headings (MeSH), which form the basis for the indexing of scientific articles, books and other items at NLM. II--A description and a tutorial of the PubMed search window. III--The present article deals mainly with the searching for references in PubMed. Ways of restricting and concentrating the search are presented, and exercises are proposed. A reader may also find guidance for a search for medical books in the NLM Catalog, and in the use of tools like Related Articles, Bookshelf, and Index. With eating disorders as an example, more information is presented on the use of MeSH terms.
Download full-text PDF |
Source |
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http://dx.doi.org/10.1080/08039480600790481 | DOI Listing |
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