Contents

03 October 2012
Vol 4, Issue 154

About The Cover

Cover image expansion

ONLINE COVER From Rare to Care. The definition of a rare disease is one that affects fewer than 200,000 people. In an Editorial, William A. Gahl explains that studying rare diseases reveals new insights into normal physiology and the pathogenesis of more common disorders. As shown by the examples discussed in this Editorial, these insights are yielding new targets for developing treatments for both rare and common diseases. [CREDIT: BRICELYN STRAUCH/SCIENCE TRANSLATIONAL MEDICINE]