| Group I: | no treatment | (N=8, 6B/B and 2 M/B) |
| Group II: | 0.5mg/kg/day | (N=6, 6 M/B) |
| Group III: | 1.0mg/kg/day | (N=6, 6 M/B) |
| Group IV: | 1.5mg/kg/day | (N=6, 6 M/B) |
| Group I: | no treatment | (N=8, 6B/B and 2 M/B) |
| Group II: | 0.5mg/kg/day | (N=6, 6 M/B) |
| Group III: | 1.0mg/kg/day | (N=6, 6 M/B) |
| Group IV: | 1.5mg/kg/day | (N=6, 6 M/B) |