- Molecular cytogenetic characterization of nasopharyngeal carcinoma cell lines and xenografts by comparative genomic hybridization and spectral karyotyping. Wong, N., Hui, A.B., Fan, B., Lo, K.W., Pang, E., Leung, S.F., Huang, D.P., Johnson, P.J. Cancer Genet. Cytogenet. (2003)