“ecological trend study”的概念、定义、翻译、参考文献-科学参考

单词	ecological trend study
释义	ecological trend study Encyclopedia 医学生态趋势研究释 ecological trend study生态趋势研究连续观察目标人群中某因素平均暴露水平的改变和某种疾病的发病率、死亡率变化的关系，了解其变动趋势；或者通过比较暴露水平变化前后疾病频率的变化情况，来判断两者间关系的群体研究。
随便看	Tale of Sim-cheong Tale of So Dae-sung Tale of Tales Tale of the Dream by Jing Bozhen Tale of the Golden Marten Tale of the Lady Yang Tale of the Lychee Mirror tale of the mountain-driving whip tale of the rice-producing cave tale of the shoemaker who becomes the husband of princess tale of the treasure-reproducing basin Tale of the Western Chamber Written by Dong Jieyuan Tale of the Western Chamber Written by Xixiangji Tale of White Snake Tale of Yangban tale of “ I-have-been-here” Tales about Tea and Salt Tales from Shakespeare Tales of a Street Corner Tales of Balgansang Tales of Hulan River Tales of Leng Hongsheng Tales of Love and Wonder Tales of Manggus Tales of My Recent Ancestors

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