title: Karyological studies on two HeLa lines.
mesh_terms: D000818:Animals; D002286:Carcinoma, Ehrlich Tumor / Q000235:genetics; D002460:Cell Line; D002875:Chromosomes; D003582:Cytogenetics; D005260:Female; D006367:HeLa Cells / Q000166:cytology*; D006801:Humans; D066298:In Vitro Techniques; D007621:Karyotyping