- Evaluation of a PCR-based universal heteroduplex generator assay as a tool for rapid detection of multidrug-resistant Mycobacterium tuberculosis in Peru. Mayta, H., Gilman, R.H., Arenas, F., Valencia, T., Caviedes, L., Montenegro, S.H., Ticona, E., Ortiz, J., Chumpitaz, R., Evans, C.A., Williams, D.L. J. Clin. Microbiol. (2003)