Grant NumberThe Grant Number field in PubMed records grant or contract numbers as published in the article, or derived from PubMed Central as a result of the NIH Public Access Policy. To find articles funded by a particular organization, search the Grant field for the organization's name, acronym or 2-letter code (click on link above for complete list funding agency names, acronyms and codes). For example, to find studies supported by the National Institute on Aging, search PubMed for: AA[gr].