A Retroviral Replicating Vector Encoding Cytosine Deaminase and 5-FC Induces Immune Memory in Metastatic Colorectal Cancer Models oleh Kader Yagiz, Maria E. Rodriguez-Aguirre, Fernando Lopez Espinoza, Tiffany T. Montellano, Daniel Mendoza, Leah A. Mitchell, Carlos E. Ibanez, Noriyuki Kasahara, Harry E. Gruber, Douglas J. Jolly, Joan M. Robbins