Exact(32)
In these linkage based studies, cases with known cytogenetic aberrations have been excluded.
There are also considerable advantages for observational studies; cases are effectively nested within a cohort, minimizing the risk of selection, recall and diagnostic biases, common problems in conventional case-control studies.
In population-based studies, studied cases were collected from a target population (e.g. from communities or regional hospitals); in hospital-based studies, cases were enrolled from specific hospitals and could not cover any target population.
In both studies, cases smoked tobacco and drank alcohol much more frequently than controls.
In some community-based studies, cases of gastrointestinal anthrax outnumbered those of cutaneous anthrax.
† In all studies cases per month were estimated from Figures as specific data were not presented.
Similar(28)
Case-control studies, case series and case reports were excluded.
Inside the store, Mr. Welburn paused to study cases full of watches.
Study cases were designed for several students.
What lessons can college students learn from studying cases of justice and injustice?
n - number of studied cases.
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