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Metcalfe, John Z., Elizabeth Y. Kim, S.-Y. Grace Lin, Adithya Cattamanchi, Peter Oh, Jennifer Flood, Philip C. Hopewell, i Midori Kato-Maeda. Determinants of Multidrug-Resistant Tuberculosis Clusters, California, USA, 2004–2007. Centers for Disease Control and Prevention, 2010.

Metcalfe, John Z., et al. Determinants of Multidrug-Resistant Tuberculosis Clusters, California, USA, 2004–2007. Centers for Disease Control and Prevention, 2010.