Azzi, A., F. Chiodo, M. Crovatto, V. Ghisetti, C. Mancini, P. Ravanini, and M. Zerbini. “Standardization of Nucleic Acid Amplification Tests in Diagnostic Molecular Microbiology”. Microbiologia Medica, Vol. 23, no. 3, Sept. 2008, doi:10.4081/mm.2008.2567.