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. 2021 Feb 10;23(2):e25499. doi: 10.2196/25499

Figure 2.

Figure 2

Term map showing phrases from publication titles and abstracts in virtual reality research in medicine. Phrases occurring in at least 0.5% (42/8399) of the publications were included. Multiple appearances in a single publication counted as one. Circle size represents the frequency of occurrence, color represents the citation per publication, and distance between 2 circles represent how 2 phrases co-occurred in the publications.