A tandem CD19/CD20 CAR lentiviral vector drives on-target and off-target antigen modulation in leukemia cell lines ================================================================================================================== * Dina Schneider * Ying Xiong * Darong Wu * Volker NÓ§lle * Sarah Schmitz * Waleed Haso * Andrew Kaiser * Boro Dropulic * Rimas J. Orentas