Editorial

Spillover Effects in Clinical Trials

JAMA 10.1001/jama.2026.7858

May 30, 2026 at 7:00 PM EDT

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Corresponding Author: Issa J. Dahabreh, MD, ScD, Department of Epidemiology, Harvard T.H. Chan School of Public Health, 677 Huntington Ave, Office 816c, Kresge Building, Boston, MA 02115 (idahabreh@hsph.harvard.edu).

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