Abraham Lincoln and the 'Lincoln sign'

Collin Kroen, MD
Associate Program Director, Internal Medicine Residency Program, Section of Hospital Medicine, Cleveland Clinic

Address: Collin Kroen, MD, Section of Hospital Medicine, S70, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195; e-mail: [email protected]

Collin Kroen, MD
Associate Program Director, Internal Medicine Residency Program, Section of Hospital Medicine, Cleveland Clinic

Address: Collin Kroen, MD, Section of Hospital Medicine, S70, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195; e-mail: [email protected]

Collin Kroen, MD
Associate Program Director, Internal Medicine Residency Program, Section of Hospital Medicine, Cleveland Clinic

Address: Collin Kroen, MD, Section of Hospital Medicine, S70, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195; e-mail: [email protected]