Cameron A, Pecora ND, Pettengill MA. Extraction-Free Methods for the Detection of SARS-CoV-2 by Reverse
Transcription-PCR: a Comparison with the Cepheid Xpert Xpress SARS-CoV-2 Assay
across Two Medical Centers. J Clin Microbiol 2021;59.
PMID: 33184055