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CD19 is a B-cell surface protein expressed throughout B cell development; therefore, it is expressed on nearly all B cell malignancies, including acute lymphoblastic leukemia (ALL),and many non-Hodgkin lymphomas. B cell neoplasms are clonal tumors of mature and immature B lymphocytes (e.g., acute lymphoblastic leukemia).UCART19 is intended to treat CD19-positive B lymphoid malignancies in paediatric and adult populations.

The objective of this study is to better understand the effects of chronic diseases, such as congenital heart disease, on blood vessel function and on blood characteristics.

To assess the survival rate of subjects at 6 and 12 months following implantation of the Bioabsorbable pulmonary valve conduit. To assess the rate of conduit failures at 6 months, requiring re-intervention or reoperation.