Serious Bleeding in Patients With Atrial Fibrillation Using Diltiazem With Apixaban or Rivaroxaban

Wayne A. Ray, PhD; Cecilia P. Chung, MD, MPH; C. Michael Stein, MB, ChB; Walter Smalley, MD, MPH; Eli Zimmerman, MD; William D. Dupont, PhD; Adriana M. Hung, MD, MPH; James R. Daugherty, MS; Alyson Dickson, MA; Katherine T. Murray, MD