National Library of Medicine (NLM) USA, Medline, Chemistry directory, British-Library, EBSCO, Gale, Hinari, IDOSI, Index Copernicus, MediaFinder, New Jour, ProQuest, Research Gate, Scientific Commons, Socolor, Ulrich’s, WAME.

Links
WikidataFATCATISSNGoogleBingYahooCrossRefWebsitePMSFacebookLinkedinTweetInstagramPinterest; CYLEX Canadian Businesses