CXCR4 expression in feline mammary carcinoma cells: evidence of a proliferative role for the SDF-1/CXCR4 axisAngelo Ferrari, Claudio Petterino, Alessandra Ratto, Chiara Campanella, Roberto Wurth, Stefano Thellung, Guendalina Vito, Federica Barbieri, Tullio Florio · 2012