送交者: Latino2 于 2005-10-05, 17:29:35:

回答: early detection is another tricky question 由 xj 于 2005-10-05, 17:27:08:

If we run a survey in China, the socialeconomic factor may be more significant.

• in China, mammography may be a significant factor - xj (230 bytes) 2005-10-05, 17:34:35

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