So why did this one isolated population survive when all other yellow-spotted bell frogs have disappeared?
为什么当其他黄斑响铃树蛙消失时唯有这群树蛙生存了下来？
Rather than compare the rate of depression and migraine of the relatives to those of the general population, the study compared rates within this isolated population itself.
这项研究没有将这些亲戚的抑郁症和偏头痛发病率与普通人群相比较，而是在这个隔离的人群内进行比较。
Rather than compare the rate of depression and migraine of the relatives to those of the general population, the study compared rates within this isolated population itself.
这项研究没有将这些亲戚的抑郁症和偏头痛发病率与普通人群相比较，而是在这个隔离的人群内进行比较。
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