A PMID (PubMed Identifier or PubMed Unique Identifier) is a unique number assigned to each PubMed citation of life sciences and biomedical scientific journal articles. The related Pubmed Central archive may additionally assign a separate number, a PMCID (PubMed Central Identifier), normally written with a PMC prefix.
As of 2005, there are roughly between 15 and 16 million PMID numbers in use, starting from 1, and about 1 million new numbers are added each year. Unique Identifier [UID] is the search field tag used in the PubMed search query.
By using the PMID as a search argument (with or without the [uid] field tag), the relevant abstract will be displayed by PubMed. Multiple PMIDs in one search will yield all abstracts (it is interpreted as an OR operation). PMID itself should not be included in the search.
To search in combination with other terms, one must enter the search field tag, e.g., smith [au] AND (10403340 [uid] OR vaccines [mh]).
Redirecting to PMID
A PubMed Identifier is a special number given to each citation of articles in scientific journals. As of 2005, there are about 16 million in use. About 1 million are added each year.