The UMLS integrates and distributes key terminology, classification and coding standards, and associated resources to promote creation of more effective and interoperable biomedical information systems and services, including electronic health records (read more)

PubMed comprises more than 24 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites. (read more)

SNOMED CT stands for Systematized Nomenclature of Medicine Clinical Terms. It is a comprehensive clinical terminology, originally created by the College of American Pathologists and then transferred to the International Health Terminology Standards Development Organization (IHTSDO) which intends to be the standard source of ... (read more)

This data set was developed by Kaiser Permanente, and donated to the NLM for everyone to use! CMT is intended to map terms between various ontologies to common clinical terms, including specific mapping to natural language terms for patients. The portion mapping medical jargon to natural language was originally developed by KP for its PHR system. You can watch