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. 2020 Aug 31;8:158806–158825. doi: 10.1109/ACCESS.2020.3020391

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This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/

This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/

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FIGURE 18. — Number of Tweets by day for each method in the cities of Sao Paulo, Lima, New York City, London, Hong Kong, Shanghai, Madrid, and Milan for the health topic.