1. Copyright of abstracts The abstracts contained in this corpus are from PubMed(R), a database of the U.S. National Library of Medicine (NLM). NLM data are produced by a U.S. Government agency and include works of the United States Government that are not protected by U.S. copyright law but may be protected by non-US copyright law, as well as abstracts originating from publications that may be protected by U.S. copyright law. NLM assumes no responsibility or liability associated with use of copyrighted material, including transmitting, reproducing, redistributing, or making commercial use of the data. NLM does not provide legal advice regarding copyright, fair use, or other aspects of intellectual property rights. Persons contemplating any type of transmission or reproduction of copyrighted material such as abstracts are advised to consult legal counsel. 2. Copyright of annotations The copyrights of annotations jointly created by the National Centre for Text Mining (NaCTeM) and the Korea Institute of Science and Technology Information (KISTI) belong in their entirety to NaCTeM and KISTI. 3. Licence terms Use and distribution of abstracts drawn from PubMed is subject to the PubMed(R) license terms as stated in Clause 1. Annotations are licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) license. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA. 4. References - NaCTeM : http://www.nactem.ac.uk/ - KISTI : http://en.kisti.re.kr/ - PubMed : http://www.pubmed.gov/ - NLM (United States National Library of Medicine) : http://www.nlm.nih.gov/