endoluminal
(EN-doh-LOO-mih-nul)
In medicine, refers to the area inside a tube, duct, or hollow organ in the body. Examples are a blood vessel, the stomach, or the intestines.
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.