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.
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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