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Number of annual publications on echinococcosis research from 1980 to 2018 in Web of Science Core Collection databases (WoSCCd). The period from 1980 to 1996 was the first stage with average annual outputs of 110 articles, while the period from 1997 to 2007 was the second stage with 232 articles and the third stage from 2008 to 2017 had 326 articles.
