EndNote provides term lists in which the user can store both the full titles of journals and the corresponding abbreviations. Make sure that you choose the correct format.
This example shows you how to use the full name of the journal but you can also choose from Abbrevation 1 or Abbreviation 2 (Index Medicus without periods OR Index Medicus with periods).
Adding a new output style to your EndNote output styles is easy if you follow these directions.
Learn how to capitalize titles in an Output Style to change this in your entire library.
If you want to change the capitalization of the title in the reference list then you can modify this in the output style:
1. Open EndNote and go to Edit > Output Styles > Open Style Manager.
2. Locate and then double click to open the style that you use.
3. Under 'Bibliography' on the left, click on 'Title Capitalization' and on the right change the setting to your requirement.
4. Click on File > Save As to save a copy of the output style
The video linked below shows another option when editing the output style to make all letters in the journal title capitalized, e.g. SCIENCE.
This Endnote feature is great for references that are e-pub ahead of print. Run this every so often to update your references with the volume, issue and pages numbers once they are assigned.
Learn how to edit an existing output style to exactly what you need. A transcript of this video is available online here: https://sites.google.com/a/umich.edu/thltranscripts/endnote-editing-an-output-style
You can also find print instructions from EndNote on Modifying Reference Types and Output Styles here (link will open a PDF file for Endnote X7).
How to setup your Journals Term List to uniformly output journal titles.