FDA-Approved Drug Restores Hair in Patients with Alopecia Areata (image) Columbia University Medical Center Share Print E-Mail Caption This image shows a hair follicle (blue) being attacked by T cells (green). Credit Christiano Lab/Columbia University Medical Center Usage Restrictions May only be used in the context of this news. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.