Systematic assessment of pharmaceutical prescriptions in association with cancer risk: a method to conduct a population-wide medication-wide longitudinal study.

Sci Rep · 2016 · PMC4979093 · PMID 27507038

Europe PMC DOI

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highly significantno p-value reported

Furthermore, omitted variable bias, or unaccounted confounding, can result in highly significant but spurious results in observational studies 24 .

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