| umls-concept:C0221908 | skos:definition | NCI: Refers to the cells that line the internal and external surfaces of the body.,CHV: relating to epithelium which is Membranous tissue composed of one or more layers of cells,NCI: A term that refers to the cells that make up the epithelial tissues. They are found in the skin, and in the parenchyma, surface and lumen of internal organs. | lld:umls |
