Many medical and health journals use the AMA style of the American Medical Association. 

To find AMA Style in the EndNote software, the AMA Style is under JAMA.ens which is ordered below J Zoology.

1. Open EndNote
2. Click Edit > Output Styles > Open Style Manager
3. Scroll alphabetically past J Zoology and check JAMA.
1. You may double-click the JAMA style to see useful comments and limitations of that style or to edit the style.
4. Click X in the upper right corner of the window to close the window.

If you don’t find it in the EndNote Styles folder, you may download that style from the EndNote Web site and save it in your EndNote Styles folder under C:\Program Files\EndNote X5\Styles.

If no DOI is included in the citation, substitute the URL.

A DOI is a alphanumeric code which identifies an article; just like your Social Security Number identifies you.

APA 6th edition recommends that the DOI be included in an article citation when available.

Not every article has a DOI. Older articles are more likely to have not been assigned one.

If you are citing an article you obtained in print and you cannot find an existing DOI, you may cite the article without one.

If you are citing an article you obtained electronically, you are expected to make a reasonable effort to find a DOI for the article. (Check the article itself or use the Free DOI Lookup below.) If you cannot find a DOI, then include additional information such as the database name or the URL. (See the DOI and URL Flowchart below.) 

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