Authors: Ana María Ríos; Asunción Mejías; Susana Chávez-Bueno; Mónica Fonseca-Aten; Kathy Katz; Jeanine Hatfield; Ana María Gómez; Hasan S Jafri; George H McCracken; Octavio Ramilo; Robert Doug Hardy Journal: Antimicrob Agents Chemother Date: 2004-08 Impact factor: 5.191