Fig. 2From: Comprehensive analysis of Twitter usage during a major medical conference held virtually versus in-personHashtag co-occurrence. Network graph of most frequently co-occurring hashtags in 2019 (A) and 2020 (B) (excluding the congress hashtags #rsna19, #rsna2019, #rsna20, #rsna2020). Strength of connection indicates frequency of co-occurrenceBack to article page