3 , it can be observed that enterovirus, rotavirus, norovirus, and adenovirus were more studied in 2000–2010 and less studied in the recent 11 years, showing an obvious trend of decay.
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Knowledge graph of wastewater-based epidemiology development: A data-driven analysis based on research topics and trends.
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The sentences
The keywords of illicit drugs and pharmaceuticals still maintain research hotness, but the specific research hotspots change significantly, among which the research hotspots of new psychoactive substances, biomarkers, and stability show an increasing trend.