很显然，19世纪北搏腾丰年和歉年导致了该地区人口外基因改变，这点早在2000年初本内已经很清楚。
By early 2000, it seemed clear to Bygren that the feast and famine years in 19th century Norrbotten had caused some form of epigenetic change in the population.
很显然，19世纪北搏腾丰年和歉年导致了该地区人口外基因改变，这点早在2000年初本内已经很清楚。
By early 2000, it seemed clear to Bygren that the feast and famine years in 19th century Norrbotten had caused some form of epigenetic change in the population.
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