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The cross-sectional nature of the study means that it captures data at a single point in time, with independent and dependent variables collected simultaneously, thereby limiting the explanation of causal relationships

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PMID 16915296

"Like everybody else, we were very worried about COVID and trying to understand what are the important risk factors that predispose people for more severe outcomes," first author Dr

These findings are particularly important now as more states legalize marijuana, while the impact of both active and passive exposures are not fully understood, Slotkin said