TIP:: Careful, a network of co-occurrences of keywords does not use the abstracts of the bibliographic entries, but only the keywords supplied by the authors or the editor. These are typically much ...

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We present VOSviewer, a freely available computer program that we have developed for constructing and viewing bibliometric maps. Unlike most computer programs that are used for bibliometric mapping, ...

1 Graduate School of Baotou Medical College, Baotou, China 2 Department of Gastroenterology, The Second Affiliated Hospital of Baotou Medical College, Baotou, China Background: Increasing evidence ...