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A clinical pediatric nurse has noticed a rise in childhood asthma diagnoses among the Hispanic population served by the local clinic. The nurse is concerned about this increase in asthma incidence in the patient population and turns to the literature to explore current research on this topic. The nurse finds, through the reading, that there appears to be an association between parental smoking and childhood asthma and wonders if this could be the cause of the rise in cases.
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Observational Study Designs