Card Studies for Observational Research in Practice by Westfall, John M., MD, MPH, Zittleman, Linda, MSPH, Staton, Elizabeth W., MS, Parnes, Bennett, MD, Smith, Peter C., MD, Niebauer, Linda J, Fernald, Douglas H., MA, Quintela, Javan, BS, Van Vorst, Rebecca F., MSPH, Dickinson, L. Miriam, PhD, Pace, Wilson D., MD

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Lack of Impact of Direct-to-Consumer Advertising on the Physician-Patient Encounter in Primary Care: A SNOCAP Report by Parnes, Bennett, MD, Smith, Peter C., MD, Gilroy, Christine, MD, Quintela, Javan, BS, Emsermann, Caroline B., MS, Dickinson, L. Miriam, PhD, Westfall, John M., MD, MPH

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