goitre growth was investigated in rats receiving a low iodine diet ( less than 0.1 microgram iodine/g ) and either 1 g/l kclo4 or 1 g/l propylthiouracil ( ptu ) , or a combination of kclo4 or ptu with 50.82 nmol/1 t3 in tap water for 3 weeks .
C0018021
goitre
C0033511
ptu