Group No. of rats Treatment
1a 6 Administered with 0.5 ml of distilled water for 60 days
1b 6 Withdrawn from  distilled  water administration for the next 60 days
2a 6 Administered with 0.5 ml of vegetable oil for 60 days
2b 6 Withdrawn from vegetable oil  administration for the next 60 days
3a 6 Administered with  4.0 mg/kg body weight of gasoline fuel for 60 days
3b 6 Withdrawn from 4.0 mg/kg body weight of gasoline fuel      administration for the next 60 days
4a 6 Administered with  4.0 mg/kg body weight of diesel fuel for 60 days
4b 6 Withdrawn from 4.0 mg/kg body weight of diesel fuel   administration for the next 60 days
Table 1: Distribution and treatment of experimental animals in the respective groups.