Objective: To investigate the blood lead level of 2~7years old children in Dalian and identify the related factors of high lead level. to provide scientific date for preventing lead poisoning .
目的：调查大连市城区2～7岁儿童血铅水平现状及其影响因素，为防治铅中毒提供依据。
Objective: To investigate the blood lead level of 2~7years old children in Dalian and identify the related factors of high lead level. to provide scientific date for preventing lead poisoning .
目的：调查大连市城区2～7岁儿童血铅水平现状及其影响因素，为防治铅中毒提供依据。
应用推荐