PubMed Unique Identifier [pmid]
To search by the PubMed Unique Identifier (PMID):
- Use the [pmid] tag if you wish.
To search for several unique identifiers, enter each number in the query box separated by a space. Do not add the [pmid] tag or the Boolean operator as PubMed takes care of this for you.
- Example: 7998669 9340531 [Show Me]
The institutional affiliation (address) of the first author is taken from the article.
- Use [ad] to qualify affiliation or address of the first author.
cleveland[ad] AND clinic[ad] [Show Me]
national[ad] AND eye[ad] AND institute[ad]