Impact of replacing smear microscopy with Xpert MTB/RIF for diagnosing tuberculosis in Brazil: a stepped-wedge cluster-randomized trial.

Authored by: Durovni B, Saraceni V, van den Hof S., Trajman A, Cordeiro-Santos M, Solange Cavalcante, Alexandre Menezes , Cobelens F.
In: PLoS Med, 2014
http://www.ncbi.nlm.nih.gov/pubmed/25490549