图片文件尺寸 : 1977 x 3100px
“国家卫生研究院公布的污染对上消化道和呼吸道的影响–National Institutes of Health
The impact of pollution on the upper alimentary and respiratory tracts–National Institutes of Health (美国, 1887-)
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图片文件尺寸 : 1977 x 3100px
“国家卫生研究院公布的污染对上消化道和呼吸道的影响–National Institutes of Health
The impact of pollution on the upper alimentary and respiratory tracts–National Institutes of Health (美国, 1887-)