| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
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| RIS | radiology information system; rapid immunofluorescence staining; resonance ionization spectroscopy |
| BNIST | National Bureau of Scientific Information [Fr. Bureau National d'Information Scientifique] |
| CIS | carcinoma in situ; catheter-induced spasm; central inhibitory state; Chemical Information Service; c... |
| ERIC | Educational Resource Information Center; Educational Resource Information Clearinghouse |
| interventional radiology | The clinical subspecialty that uses fluoroscopy, CT, and ultrasound to guide percutaneous procedures such as performing biopsies, draining fluids, inserting catheters, or dilating or stenting narrowed ducts or vessels. (05 Mar 2000) |
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| genetic information | The heritable biological information coded in the nucleotide sequences of DNA or RNA (certain viruses), such as in the chromosomes or in plasmids. (09 Oct 1997) |
| positional information | The instructions that are interpreted by cells to determine their differentiation in respect of their position relative to other parts of the organism, for example digit formation in the limb bud of vertebrates. (18 Nov 1997) |
| National Cancer Information Service | <address, organisation> National Cancer Institute, cancer Information Service, office of Cancer Communications, Building 31, Room 10A24, 9000 Rockville Pike, Bethesda, MD 20892 (27 Sep 1997) |
| national health planning information centre | A centre in the health resources administration division of planning methods and technology which provides access to current information on health planning and resources development. (12 Dec 1998) |
| drug information services | Services providing pharmaceutic and therapeutic drug information and consultation. (12 Dec 1998) |
| information centres | Facilities for collecting and organizing information. They may be specialised by subject field, type of source material, persons served, location, or type of services. (12 Dec 1998) |
| information management | Management of the acquisition, organization, storage, retrieval, and dissemination of information. (12 Dec 1998) |
| information science | The field of knowledge, theory, and technology dealing with the collection of facts and figures, and the processes and methods involved in their manipulation, storage, dissemination, publication, and retrieval. It includes the fields of communication, publishing, library science and informatics. (12 Dec 1998) |
| information services | Organised services to provide information on any questions an individual might have using databases and other sources. (12 Dec 1998) |
| information storage and retrieval | A branch of computer or library science relating to the storage, locating, searching, and selecting, upon demand, relevant data on a given subject. (12 Dec 1998) |
| information system | Combination of vital and health statistical data from multiple sources, used to derive information and make decisions about the health needs, health resources, costs, use, and outcome of health care. (05 Mar 2000) |
| information theory | An interdisciplinary study dealing with the transmission of messages or signals, or the communication of information. Information theory does not directly deal with meaning or content, but with physical representations that have meaning or content. It overlaps considerably with communication theory and cybernetics. (12 Dec 1998) |
| adverse drug reaction reporting systems | Systems developed for collecting reports from government agencies, manufacturers, hospitals, physicians, and other sources on adverse drug reactions. (12 Dec 1998) |
| animal identification systems | Procedures for recognizing individual animals and certain identifiable characteristics pertaining to them; includes computerised methods, ear tags, etc. (12 Dec 1998) |