Wolman S R, Phillips T F, Becker F F
Science. 1972 Mar 17;175(4027):1267-9. doi: 10.1126/science.175.4027.1267.
Quinacrine staining permits identification of rat chromosomes in metaphase that were formerly classified only in groups within the karyotype. This technique defined two types of abnormal chromosomes in cells of rat hepatomas.