guinea-pigs treated by gavage with a total dose of 100 mg polychlorinated biphenyls ( pcb : clophen a50 ) during days 17-61 of gestation had higher plasma concentrations of 15-keto-13,14-dihydroprostaglandin f-2 alpha , oestrone sulphate and oestradiol-17 beta during the later stages of gestation than did vehicle-treated guinea-pigs .
C0032961
gestation
C0014912
oestradiol-17 beta