Source:http://linkedlifedata.com/resource/umls/id/C0242349
CSP: application of immunochemical techniques, as histochemical localization of immunoreactive substances using labeled antibodies as reagents, to cytochemistry.,NCI: A laboratory tissue staining procedure involving monoclonal or polyclonal antibodies that react with specific tissue antigens. Initially used as a research tool, immunocytochemistry has become routine in diagnostic work-up of diseases in pathology. -- 2004