translation.en: On the other hand, there is a difference between those fraternal twins and the siblings, suggesting that there are common exposures for those fraternal twins that may not be shared as commonly with siblings alone.
translation.zh: 另外，异卵双胞胎之间的一致率 与普通兄弟姐妹的一致率也不同， 这表明了异卵双胞胎共享的 一些介质 是普通的兄弟姐妹 无法共同接触到的。