From the *Department of Medicine, SRM Medical College Hospital, SRM University, Chennai, India; and †Department of Internal Medicine, SUNY Upstate University, New York, NY.
V.S. was at SRM University when this work was done.
Correspondence: Srinivasan Narayanan, MD, Department of Medicine, SRM Medical College, SRM University, SRM Nagar, Kattankulathur, Chennai 603203, Tamil Nadu, India. E-mail: email@example.com.