- Correspondence to Marco M Ferrario, Research Center in Epidemiology and Preventive Medicine, Department of Medicine and Surgery, University of Insubria, Via O. Rossi 9, Varese 21100, Italy;
- Received February 21, 2020
- Revised June 11, 2020
- Accepted July 23, 2020
- First published August 27, 2020.
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