Medicine

Article-level metrics can be measured in these various ways:

1. Citation Analysis: This type of analysis measures the number of cites that an article has received, i.e. how many times the article has been cited by other articles. One tool that can provide this number and create a citation report of a set of articles is the Web of Science database. 

2. Altmetrics: Also referred to as "alternative metrics," this metric attempts to fill a gap in traditional metrics by using social media mentions, link backs, blogs, news outlet coverage, and other web metrics to measure the attention given to a particular work. Altmetrics are especially well-suited to datasets and types of scholarly work not covered by traditional metrics.

• You can find altmetrics for journal articles by some publishers (Wiley and PLoS, for example) and in databases like Dimensions.
• You can also install the Altmetrics bookmarklet on your browser.
  • The bookmarklet only works on webpages containing a DOI number for an article, such as on PubMed and on many journal publishers' websites. 
• Examples of how altmetrics might be displayed:

From PLoS:

From Dimensions:
                             

As with any metrics, it is important not to use them alone as a judge of the quality of the individual publication. It's always best to review the publication yourself.