Take the experimental rats into 8 groups including 3 groups for therapeutic dose,3 groups for toxic dose and 2 groups for lethiferous dose, with 10 rats for each group and male and female for half.
将实验小鼠(幼年)分成8,其中治疗剂量3
,中毒剂量3
,致死剂量2
,每
10
,
雄各
。