TABLE 3.

Effects of low-dose-rate irradiation on survival of MRL-lpr/lpr mice

	SURVIVAL (%)
Age (days)	0 (mGy/hr)	0.35 (mGy/hr)	1.2 (mGy/hr)
100	100	100	100
125	67	100	100
150	0	83	100
175	0	25	100
200	0	17	83