Help:Magic links

Magic links are automatic links for certain unique identifiers that require no markup.

ISBN
The International Standard Book Number (ISBN) is a unique numeric commercial book identifier. The allowable formats are:


 * 9 or 13 digits
 * optional delimiting hyphens or spaces
 * 1 check character

PMID
A PMID (PubMed identifier or PubMed unique identifier) is a unique number assigned to a PubMed record.

RFC
a Request for Comments (RFC) is a memorandum published by the Internet Engineering Task Force (IETF).

Technical
Magic links are rendered by. The links for PMID and RFC are rendered by MediaWiki interface pages:
 * PMID: MediaWiki:Pubmedurl
 * RFC: MediaWiki:Rfcurl