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Grant Numbers [gr]

Research grant numbers, contract numbers, or both that designate financial support by U.S. federal health agencies or other U.S. and non-U.S. funding organizations. See the Grant Number Information page for a complete list.

For Public Health Services agencies, the number is followed by the Institute acronym; followed by the agency’s hierarchical structure from lower to higher entity, when known; and then followed by the country name.

Examples:       
LM05545/LM/NLM NIH HHS/United States

CA47147/CA/NCI NIH HHS/United States

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For other funding organizations, the number is followed by the name of the organization; followed by the country name.

Examples:
GR072308/Wellcome Trust/United Kingdom
066866/Wellcome Trust/United Kingdom
Howard Hughes Medical Institute/United States

The four pieces of the grant number (e.g., LM05545 – number; LM – acronym; NLM NIH HHS – parts of, or the entire string of the agency’s hierarchical structure; and funding country) are each individually searchable using the [gr] tag.

Examples:
K01-AT000054/AT/NCCIH NIH HHS/United States[gr]
lm05545 [gr]
wellcome trust [gr]
nlm [gr]
united kingdom [gr]

PubMed’s online Help links to a Web page detailing Grant Number Information Found in the GR Field in MEDLINE/PubMed.

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