Journal "Annals of Arrhythmology" used a citation format based on four-digit citation identifiers (CIDs). The CID chosen for Annals of Arrhythmology is similar to that used by Chaos and Physical Review.
Use of CIDs in place of traditional page numbers allows an issue to build online one article at a time while retaining the ability to segment tables of contents by article type or subject area; this accelerates online publication of articles, which are published online individually as soon as author proof corrections are incorporated. Utilization of CIDs also allows articles to be fully citable as soon as they are published online, using the same identifier for both online and print versions.
The structure of the five-digit citation identifier is defined as follows:
- first two digits – indicate the issue number,
- last two digits – assigned according to publication order, within that issue.
An example of the correct citation format for an article in Annals of Arrhythmology is:
Bockeria L. A., Zelenikin M. A., Golukhova E. Z., Batov S. M. Heart rhythm and conduction disturbances in early postoperative period after surgical correction for congenital heart defects in infants. Annals of Arrhythmology. 2013;1:0102.
In this example, the article by Bockeria L. A., Zelenikin M. A., Golukhova E. Z., Batov S. M. was published in Annals of Arrhythmology in Issue 1 of Volume 1, as the 2 article.
In the full-text PDF file available online, the CID appears on each printed page. Appended at the end of the CID is a hyphen followed by a consecutive page number. For the sample article above, the printed pages would carry this page numbering: 0102-1, 0102-2, 0102-3, etc. The hyphen and additional digits should not be used when citing or searching for an article.