1 StopTB Italia Onlus, Milan, Italy, Regional TB Reference Centre, Villa Marelli Institute, Niguarda Hospital, Milan, Italy.
2 StopTB Italia Onlus, Milan, Italy.
3 StopTB Italia Onlus, Milan, Italy, Clinical Epidemiology and Medical Statistics Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy.
4 StopTB Italia Onlus, Milan, Italy, Infectious Diseases Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.