text_1: 在 接受 乳腺 X 线 筛查 的 40 , 373 名 女性 中 , 8 , 061 人 被 分配 至 邀请 接受 MRI 检查 的 组 , 32 , 312 人 被 分配 至仅 接受 乳腺 X 线 检查 的 组 .
  
text_2: of the 40,373 women who underwent mammography screening , 8061 were assigned to a group that was invited to undergo MRI and 32,312 were assigned to a group that received mammography only .
  