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目的对女性致密型乳腺,两年一次数字化乳腺摄影结合断层融合筛查与两年一次单独数字化乳腺摄影筛查的效果比较。方法前瞻性地从联邦纳税人中筛选出具有一
OBJECTIVE To compare the effectiveness of compact female mammary gland, bi-annual mammography combined with fusion tomography and single digital mammography screening every two years. The methodology proactively selects one from federal taxpayers