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Environmental Health Perspectives

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Continuous Publication

Starting with the May 2017 issue, EHP has moved from a traditional, issue-by-issue publishing model, to a new, article-by-article publishing model known as continuous publication. This is a more modern way of publishing an online journal.

Under the continuous publication model, EHP has the ability to publish final, edited, composed papers every day, instead of waiting to release final content on only one day each month. On the first day of each month, a new issue is opened. After that date, any articles that are ready to publish will begin to appear online in real time, and that process will continue throughout the month. The issue closes on the last day of the month, and any articles published between those dates will make up the issue. The process will then start anew on the first day of the next month, with a new open issue ready for final content to be posted online.

Citation Identifier

As part of our move to continuous publication, EHP no longer uses page numbers for its published articles. Instead, the journal now employs Citation Identifiers (CIDs) to identify articles in an issue. The CID is a six-digit number composed of three different parts:

IISSNN

where II = Issue number, always two digits (e.g., “01,” “09,”, “12”); SS = Section number, which corresponds to the article type; and NN = Sequential number, starting with “01” for each new section in each new issue.

For example, in the CID “047015”:

04 = Issue #4, or the April issue

70 = Research paper

15 = fifteenth Research paper published in this issue

Section numbers have been mapped to the actual order of headings in an issue, so CIDs will always appear in numerical order on the Table of Contents. The full map of section numbers appears in the CID Section Numbers part of this guide.

The CID applies to all versions of the published article (HTML and PDF). In the PDF, you will find page identifiers appended to the end of the CID on each page, to aid in the reading experience; for example, 047015-1 on the first page, 047015-2 on the second page, etc.

When citing an article in EHP that has been published with a CID, simply set the CID where the page range would have gone previously. Do not include the page identifiers from the PDF when citing the article; use only the six-digit CID. The DOI should also be included. For example:

Smith J. 2017. Title of article. Environ Health Perspect 125(5):047015, https://doi.org/EHPXX.

CID Section Numbers

Section # Article Type
10 Editorial
16 In Memoriam
20 Focus
30 Spheres of Influence
40 Science Selections
45 Brief Communications
50 Commentaries
60 Reviews
70 Research
80 Correspondence
90 Errata
95 Retractions

 

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