title: Purified Protein Derivative--PPD.
authors.affiliation: Hospital São José and Núcleo de Medicina Tropical, Federal University of Ceará, Fortaleza, Ceará, Brazil. aqsousa@gmail.com
authors.forename: Anastácio Q
authors.initials: AQ
authors.lastname: Sousa
authors.forename: Margarida M L
authors.initials: MM
authors.lastname: Pompeu
authors.forename: C Jaime
authors.initials: CJ
authors.lastname: Araujo Filho
authors.forename: Telma R B S
authors.initials: TR
authors.lastname: Queiroz
authors.forename: J Clementino
authors.initials: JC
authors.lastname: Ferreira
mesh_terms: D003875:Drug Eruptions / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009169:Mycobacterium tuberculosis / Q000276:immunology*; D014373:Tuberculin; D014374:Tuberculin Test / Q000379:methods*; D014376:Tuberculosis / Q000175:diagnosis* / Q000276:immunology
chemical_list: D014373:Tuberculin