结论：查尔酮可以抑制BGC823细胞生长，并呈剂量-反应关系。

Conclusion: chalcone can inhibit the growth of BGC823 and arrest the cell cycle.

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敌枯双在体外对人淋巴细胞的UDS(程序外d NA合成)有诱导作用，呈剂量-反应关系。

MATDA can damage DNA and induce unscheduled DNA synthesis (UDS) in human lymphocytes in vitro, on a dose-effect relationship.

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相关性的强度应该达到一定联系强度水平(从流行病学的角度来看)，并且副反应与疫苗存在剂量-反应关系。

The association should be strong in the magnitude of the association (in an epidemiological sense), and in the dose-response relationship of the vaccine with the adverse effect.

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