Kumiko Yamada, Reiji Semba, XiaoHui Ding, Ning Ma, Masato Nagahama. Discrimination of Cell Nuclei in Early S-phase, Mid-to-late S-phase, and G2/M-phase by Sequential Administration of 5-Bromo-2'-Deoxyuridine and 5-Chloro-2'-Deoxyuridine. Journal of Histochemistry & Cytochemistry. 2005. 53. 11. 1365-1370