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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Am J Obstet Gynecol. 2016 Jun 16;215(5):661.e1–661.e7. doi: 10.1016/j.ajog.2016.06.015

Figure 1. Study Participants.

Figure 1

This figure describes the participants included for further review in the CMS database. The participants are categorized by those with CMS accounts, those with companies listed in their abstract disclosure statement, and those who included all CMS companies in the disclosure statement.