2013AB UMLS Release Available on UTS. NLM Tech Bull. 2014 Jan-Feb;(396):b1.
You now may browse the 2013AB Unified Medical Language System (UMLS) Release on the UMLS Terminology Services (UTS) Metathesaurus Browser. You may also query the data through the UTS API.
In addition, the UTS SNOMED CT Browser now features the September 2013 Release Format 2 (RF2) US Edition of SNOMED CT.