- Correspondence to Professor Dario Gregori, Unit of Biostatistics, Epidemiology and Public Health, Department of Cardiac, Thoracic, Vascular Sciences, and Public Health, University of Padova, Padova 35131, Italy;
- Received March 28, 2020
- Revised April 14, 2020
- Accepted April 21, 2020
- First published May 4, 2020.
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