Excision of an unstable pathogenicity island in Salmonella enterica serovar Enteritidis is induced during infection of phagocytic cells. oleh Tania S Quiroz, Pamela A Nieto, Hugo E Tobar, Francisco J Salazar-Echegarai, Rodrigo J Lizana, Carolina P Quezada, Carlos A Santiviago, Daniela V Araya, Claudia A Riedel, Alexis M Kalergis, Susan M Bueno