Fractionated high dose-rate versus low dose-rate regimens for intracavitary brachytherapy of the cervix: equivalent regimens for combined brachytherapy and external irradiation.
Brenner DJ, Huang Y, Hall EJ.
Int J Radiat Oncol Biol Phys. 1991 Nov;21(6):1415-23. doi: 10.1016/0360-3016(91)90315-u.