| ICSTI | International Council for Scientific and Technical Information |
|---|---|
| ICSU | International Council of Scientific Unions |
| JCAI | Joint Council of Allergy and Immunology |
| LHC | Langerhans cell histiocytosis; left heart catheterization; left hypochondrium; light-harvesting comp... |
| NAC | N-acetylcysteine; National Asthma Center; National Audiovisual Center; Noise Advisory Council |