Shows impact factors/JCR quartile, filter search results by impact factors/JCR quartile, and more

Show the impact factor (IF) and JCR quartile information (Q1 - Q4) of the journals in PubMed web pages; Filter the search results by impact factors or JCR quartile of journals; Expand or Collapse the snippet; Show or Hide the abstract.

Sep. 17th updates:
- Update the database of impact factors to the 2020 version
- Optimizations.

Oct. 20th 2020 updates:
- Optimizations.

Oct. 6th 2020 updates:
- Expand or Collapse the snippet; Show or Hide the abstract.

Aug. 26th 2020 updates:
- Add data of some missing journals. Now our database covers most of the journals in PubMed.
- Show the JCR quartile information (Q1 - Q4) for each journal
- Add checkboxes to filter search results based on the journal of JCR quartile

July 26th 2020 updates:
- Update the database of impact factors to the 2019 version
- Bug fixes

July 18th 2020 updates:
- Update to reflect the changes on PubMed web page tag names
- Bug fixes

June 27th 2020 updates:
- Added data of some missing journals in our google spreadsheet
- Simplified by removing the support to old PubMed
- Bug fixes

Feb 24 2020 updates:
- Using a slide to set IF filter in the filter panel of the webpage (See option)
- Bug fixes

Feb 20 2020 : Updated to support the legacy PubMed.
- Abstract Preview.
- Copy citation to clipboard.

Feb 19 2020 : Updated for the new Pubmed.
- Add a direct link to PMC webpage for the free PMC articles. 
- Add impact factor filter to the left setting panel of the webpage."