1. MDR-TB Unit, Tuberculosis Division, International Union Against Tuberculosis and Lung Disease, Paris, France; and Departament de Pediatria, Ginecologia i Medicina Preventiva, Universitat Autònoma de Barcelona, Barcelona, Spain
2. MDR-TB Unit, Tuberculosis Division, International Union Against Tuberculosis and Lung Disease, Paris, France; Servicio de Neumología, Hospital General de Gran Canaria ‘Dr Negrin’, Las Palmas de Gran Canaria, Spain