送交者: xj 于 2007-01-03, 12:46:29:

回答: 的确如此, 而且多组比较得出的阳性结果应打个问号, 宁愿把结论注意 由 blackbox 于 2007-01-03, 12:26:49:

• what wrong? Positive result from either observational or case-control - blackbox (195 bytes) 2007-01-03, 13:07:27 (118196)

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