title: [Biopotency of tuberculins used in Spain].
authors.forename: C A
authors.initials: CA
authors.lastname: Lobo Barrero
authors.forename: E
authors.initials: E
authors.lastname: Pérez Escolano
mesh_terms: D001682:Biological Availability; D006801:Humans; D013030:Spain; D014373:Tuberculin; D014374:Tuberculin Test
chemical_list: D014373:Tuberculin