Examlex
_____ is the inability to tolerate an environmental chemical or a class of foreign chemicals.
Cross-sectional Design
A research design that analyzes data from a population, or a representative subset, at a specific point in time to examine relationships between variables.
Observational Study
A research method involving the collection of data without interference with the subjects’ natural environment.
Case-control
A type of observational study that compares individuals with a specific condition (cases) to those without the condition (controls) to identify potential risk factors.
Retrospective
Looking back on or dealing with past events or situations.
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