Proficiency testing of first- and second-line anti-tuberculosis drugs in Italy
Lanfranco Fattorini, Giovanni Battista Migliori, Antonio Cassone, Alessandro Mustazzolu, Giovanni Piccaro, Perla Filippini, Daniela Maria Cirillo, Emanuele Borroni, the Italian Multicentre Study on Resistance to Antituberculosis Drugs (SMIRA) Group
European Respiratory Journal 2012 39: 1263-1266; DOI: 10.1183/09031936.00129011