Table 1.

Dose groups and patient characteristics.

	Patient index	Age	(M)ale/(F)emale	Cancer site	Number of bread-loafed slices
Group 1 (30 nanomoles/patient)	1	45	M	Right tonsil, base of tongue	6
	2	59	M	Oropharynx—soft palate	2
	3a	60	M	Tongue	0
Group 2 (90 nanomoles/patient)	4	55	F	Buccal mucosa	3
	5	56	F	Tongue	4
	6	50	F	Retromolar trigone	1
Group 3 (171 nanomoles/patient)	7	60	M	Floor of mouth	1
	8	59	M	Tongue	1
	9	82	F	Buccal mucosa	2
	10	45	F	Retromolar trigone	1
	11	48	M	Oropharynx	1
	12	86	M	Tongue	2

^a Surgical specimens collected from the third patient did not have corresponding pathology images for later analysis.