RT Journal Article SR Electronic T1 Numbers needed to treat to prevent tuberculosis JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1838 OP 1839 DO 10.1183/13993003.01179-2015 VO 46 IS 6 A1 Alberto Matteelli A1 Knut Lönnroth A1 Haileyesus Getahun A1 Dennis Falzon A1 Giovanni Battista Migliori A1 Mario Raviglione YR 2015 UL http://erj.ersjournals.com/content/46/6/1838.abstract AB