Official websites use .gov
A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS
A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.
The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.
Updates regarding government operating status and resumption of normal operations can be found at opm.gov.
The consistent use of common data elements (CDEs) standardizes data collection across studies and makes it easier to combine data from multiple studies. NIH collects the definitions of the CDEs that are required or recommended by NIH Institutes and Centers in the NIH Common Data Element Repository (CDE-R). CDEs can also be grouped into collections called forms. NIH-endorsed CDEs are collections of CDEs that meet specific criteria established by NIH.
