Agonist anti-GITR antibody significantly enhances the therapeutic efficacy of Listeria monocytogenes-based immunotherapy ======================================================================================================================== * Rajeev Shrimali * Shamim Ahmad * Zuzana Berrong * Grigori Okoev * Adelaida Matevosyan * Ghazaleh Shoja E. Razavi * Robert Petit * Seema Gupta * Mikayel Mkrtichyan * Samir N. Khleif