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N. Abrescia, A. Maddaloni, M. D’Abbraccio and M. De Marco declare that they have no competing interests. The authors declare that the work described has not been published previously, that it is not under consideration for publication elsewhere, that its publication has been approved, tacitly or explicitly, by the appropriate authorities of the institute where the work was carried out.
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Abrescia, N., Maddaloni, A., D’Abbraccio, M. et al. High incidence of SARS-CoV-2 severe pneumonia in urban metropolitan areas: a suggestive pathogenetic hypothesis. Wien Klin Wochenschr 135, 505–506 (2023). https://doi.org/10.1007/s00508-023-02279-0
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DOI: https://doi.org/10.1007/s00508-023-02279-0