At puberty ( P40 ) , half the PCPA-treated rats and half the saline-treated rats began treatment with testosterone ( T , 5 mg/kg , 5 days/week ) .
O O O O O O O O B-ChemicalEntity B-OrganismTaxon O O O O B-OrganismTaxon O O O B-ChemicalEntity O B-ChemicalEntity O O O O O O O O