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Table 3 Statistical distribution of occurrences, total link strength of all the keywords co-occurrence analysis

From: Water bodies are potential hub for spatio-allotment of cell-free nucleic acid and pandemic: a pentadecadal (1969–2021) critical review on particulate cell-free DNA reservoirs in water nexus

Keyword Occurrences Total link strength
Plasmids 10 24
Humans 12 22
Animals 9 21
DNA, bacterial 6 14
DNA 5 12
Extra-chromosomal inheritance 4 12
Base sequence 3 11
Time factors 3 11
Conjugation, genetic 3 10
Escherichia coli 5 10
Female 3 9
Molecular sequence data 3 9
Polymerase chain reaction 3 8
Dna, viral 3 7
Blotting, southern 3 6
Chromosomes, bacterial 3 6
DNA replication 3 6
DNA, circular 3 6
RNA, messenger 3 4
Centromere 3 2