Table 1.

Spermatogonial recovery.

Age (years)	Ungrafted control	A	B	C
14	3.17	3.43	2.94	5.01
8	5.46	2.19	2.70	0.80
9	2.28	2.26	1.33	1.82
15	5.46	4.14	3.84	1.30
2	0.51	0.11	0.25	0.19
2	1.26	0.10	0.41	0.50
Mean ± SD	3.02 ± 2.09a	2.04 ± 1.67a	1.91 ± 1.47a	1.60 ± 1.77a

A = slow-frozen and grafted, B = slow-frozen and supplemented with NAC, C = slow-frozen and supplemented with testosterone.

^aNo statistical difference was observed between groups (p ≥ 0.05).