title: [Bacteriologic study of negative cases of leprosy and of normal persons with a new concentration method].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001431:Bacteriological Techniques; D006801:Humans; D007918:Leprosy / Q000175:diagnosis / Q000382:microbiology; D008875:Middle Aged; D009166:Mycobacterium leprae / Q000302:isolation & purification*
vernacular_title: Estudio bacteriológico de casos negativos de lepra y personal sano con un nuevo método de concentración.