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. 2018 Jan 12;23(1):148. doi: 10.3390/molecules23010148

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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The number of NMR papers with the key words “drug” published between 1970 and 2016 (Top) and “inhibitor” between 1975 and 2016 (Bottom). These numbers are obtained from PubMed search (https://www.ncbi.nlm.nih.gov/pubmed).