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Comment & Response
November 2017

Maternal β-Blocker Use and Fetal Cardiac Anomalies

Author Affiliations
  • 1Department of Pharmacology, Izmir Katip Celebi University School of Medicine, Izmir, Turkey
  • 2Terafar-Izmir Katip Celebi University Teratology Information, Training, and Research Center, Izmir, Turkey
JAMA Intern Med. 2017;177(11):1692. doi:10.1001/jamainternmed.2017.4894

To the Editor We read with interest the Research Letter by Duan et al1 published in a recent issue of JAMA Internal Medicine. Duan et al1 make a remarkable contribution to the data regarding β-blocker exposure during pregnancy and cardiac anomalies for which conflicting findings among the studies exist.2-4

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