Table 1.

Number of rats per experiment

	Experiment	Groups and numbers	Total Number or rats
1	Developing a CTB tracing protocol to assess dorsal column sensory axons 24 hr post-injury	Sham 48 hours (n=7); sham 72 hours (n=9) 24 (n=5); 48 (n=4) or 7 days after contusion (n=6) and 24 hours after transection (n=5)	36
2	Temporal changes in microvessels and oligodendrocytes following 120 kdyn T9 contusion injury	Sham laminectomy vs. 3, 6 or 12 hours following injury (4/group)	16
3	Phototoxic injury at T9	Sham laminectomy (n=4); 24 hours after injury (n=6)	10
4	EB dose-effect study: 3 days post-injury	Sham (n=5), Saline (n=3), 0.01 (n=3), 0.03 (n=3), 0.1 (n=3), 0.3 (n=5) µg/µl EB	22
5	EB 7 day assessment	Saline (n=3), 0.3 µg/µl EB (n=9) (single and double injections)	12
6	EB Behavioral Study: 6 weeks plus motor function tests	Saline (n=6), 0.3 µg/µl EB (n=6)	12