THOUSAND OAKS, Calif.–(BUSINESS WIRE)—- $ATRA #CART–Atara Biotherapeutics, Inc. (Nasdaq: ATRA), a leader in T-cell immunotherapy, leveraging its novel allogeneic Epstein-Barr virus (EBV) T-cell platform to develop transformative therapies for patients with cancer and autoimmune diseases, today announced updated effectiveness and safety data for tabelecleucel (tab-cel® or EBVALLO™) from the multicenter…