title: [Verification of Lassen's modified method for the identification of gram negative bacilli].
abstract: Eighty strains of gram-negative bacilli, according to Lassen's modified method, and the conventional methods for their identification are studied. Lassen's original dichotomic keys, with which satisfactory results were obtained in relation to conventional methods, are presented. Reliability and greater accurateness of such a modification were shown.
mesh_terms: D001431:Bacteriological Techniques; D004755:Enterobacteriaceae / Q000302:isolation & purification*; D008722:Methods
vernacular_title: Verificación del método de Lassen modificado para la identificación de bacilos gramnegativos.