Department of Medicine, University of Illinois-Chicago, Chicago, Illinois
Takashi Matsukage, MD, PhD
Department of Cardiology, Saitama Medical University/Saitama Medical Center, Saitama, Japan; Address for correspondence: Dr. Takashi Matsukage, Department of Cardiology, Saitama Medical University/Saitama Medical Center, 1981 Kamoda Kawagoe, Saitama 350-8550, Japan.