- Correspondence to Dr Gabriel Revon-Rivière, Pediatric Oncology and Hematology, Hôpital de la Timone, 13005 Marseille, Provence-Alpes-Côte d'Azur, France;
- Received April 20, 2021
- Accepted April 21, 2021
- First published April 29, 2021.
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