- Correspondence to Dr Silvia Bargeri, IRCCS Istituto Ortopedico Galeazzi, Unit of Clinical Epidemiology, Milan, Italy Milano, Lombardia, IT, IRCCS Istituto Ortopedico Galeazzi, Milano 20161, Italy;
- Accepted March 31, 2021
- First published April 13, 2021.
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