Table 1.

Extraneous blood loss

	Blood collection number
	1	2	3	Combined
Submental	0.23	0.18	0.20	0.61
Submandibular	0.57	0.92	0.38	1.87
Retroorbital	0.43	0.26	0.19	0.88

Data are presented as total weight (in grams) of blood residue on collection materials for all mice.