@inbook{1166250199, author={Lori A. Fischbach and Bradley C. Martin}, editor={Aparasu, Rajender R. and Bentley, John P.}, title={Cohort and Case-Control Studies}, booktitle={Principles of Research Design and Drug Literature Evaluation, 2e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2020}, url={accesspharmacy.mhmedical.com/content.aspx?aid=1166250199} }