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University of Southern Denmark. (2020, September 28). COVID-19: Social distancing is more effective than travel bans, study finds. ScienceDaily. Retrieved October 23, 2020 from www.sciencedaily.com/releases/2020/09/200928125020.htm
University of Southern Denmark. “COVID-19: Social distancing is more effective than travel bans, study finds.” ScienceDaily. www.sciencedaily.com/releases/2020/09/200928125020.htm (accessed October 23, 2020).
