Comments on: Duty rate for Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones. http://betterdollar.com/duty-rate-for-hormones-prostaglandins-thromboxanes-and-leukotrienes-natural-or-reproduced-by-synthesis-derivatives-and-structural-analogues-thereof-including-chain-modified-polypeptides-used-pri/ Cross Border Shopping & Flight Guide for Canadians Tue, 25 Aug 2009 12:42:42 +0000 hourly 1 https://wordpress.org/?v=5.8.9