What The Study Did: Data from annual financial reports were used to compare the profitability of 35 large pharmaceutical companies with 357 companies in the S&P 500 Index from 2000 to 2018. This study is part of a theme issue from JAMA on drug pricing.
Authors: Fred D. Ledley, of Bentley University in Waltham, Massachusetts, is the corresponding author.
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(doi:10.1001/jama.2020.0442)
Editor's Note: The article includes funding/support disclosures. Please see the articles for additional information, including other authors, author contributions and affiliations, conflicts of interest and financial disclosures, and funding and support.
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