EXCELLENT OUTCOME OF CHILDREN/ADOLESCENTS WITH PRIMARY MEDIASTINAL LARGE B-CELL LYMPHOMA TREATED WITH LMB-BASED CHEMOTHERAPY WITH RITUXIMAB. (October 2022) - Dourthe, M.; Phulpin, A.; Auperin, A.; Couec, M.; Dartigues, P.; Ducassou, S.; Garnier, N.; Haouy, S.; Leblanc, T.; Lambilliotte, A.; Leruste, A.; Jourdain, A.; et al.