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Ernest drucker , an epidemiologist , uses the tools of his trade to examine the laws and their consequences .

欧内斯特德鲁克是一名流行病学家，利用本专业的工具考察了这些法律及其后果。

Kim bertrand at the harvard school of public health is an epidemiologist -- someone who studies the spread and control of diseases .

哈佛大学公共卫生学院的金姆贝特朗（kimbertrand）是一名流行病学家，研究疾病的蔓延和控制。

The team , led by epidemiologist andrew haines at the london school of hygiene and tropical medicine , modelled a number of scenarios for reducing greenhouse gases .

伦敦卫生及热带医学学院的流行病学家安德鲁海因斯领导了这项研究，他们在研究中模拟了多个减少温室气体排放的情境。

" This gets us a big step closer to one type of mechanism " for how the flu spreads , said epidemiologist marc lipsitch of harvard university .

“这项研究结果使我们向流感如何传播的机理方面迈进了一大步，”哈佛大学的流行病学家marclipsitch说道。

A study by professor melzer , an epidemiologist , found changes in sex hormones associated with exposure to bpa in men .

流行病学家梅尔泽教授做的一项研究发现，男性性激素的改变与接触双酚a有关。