| http://www.w3.org/ns/prov#value | - Other factors other than sex, age, and practices, could moreover have influenced the risk of infection and vaccination status of both cases and controls (e.g. if they were drawn from different residential areas or from groups with different levels of herd immunity and different behaviours) Risk of biasBiasAuthors' judgementSupport for judgementAdequate sequence generationHigh riskNot applicableAll
|
