(2) Spatial distribution mapping analysis showed a trend toward multi-polarization for the research regional and research field.
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A Systematic Review on the Research Progress and Evolving Trends of Occupational Health and Safety Management: A Bibliometric Analysis of Mapping Knowledge Domains.
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The sentences
As can be seen from Figure 3 , there was an obvious trend to an increasing number of OHSM publications, shown by a steady rise.
Discussion Evolving Trends Under Timeline A clear trend of a steady increase in the number of studies published on OHSM was seen.