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. 2020 Sep 29;117(41):25203–25204. doi: 10.1073/pnas.2016733117

Fig. 2.

Fig. 2.

COVID-19 mortality rates correlates with the frequency of alpine skiers in different German states. Frequency of Alpine skiers was taken from ref. 10, and COVID-19 mortality in different German states was taken from ref. 1, excluding city states and the Saarland.