经加拿大健康署测试，被召回的磨牙器含有微生物。
Health Canada requires that infant teether fillings not contain any living micro-organisms.
根据《动物健康法》，兽类生物制剂由加拿大食品检验署监管。
Veterinary biologics are regulated by the CFIA under the Health of Animals Act.
研究人员分析了加拿大公共健康署1981年- - - 2003年出生在加拿大的500多万儿童的出生体重数据库。
Investigators analyzed the Public Health Agency of Canada's database on the birth weights of more than five million children born in Canada between 1981 and 2003.
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