- Correspondence to Dr Pierre Charles, Internal Medicine, Institut Mutualiste Montsouris, Paris, France;
- Received January 25, 2021
- Accepted January 26, 2021
- First published February 15, 2021.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.