Board-certified and university-affiliated dermatologists in private practice. DVDG offers comprehensive medical and cosmetic dermatology services as well as patient access to in-house clinical research studies. Our doctors are clinical faculty at the oldest and most- respected dermatology training programs in the country -- the University of Pennsylvania's department of dermatology. Now enrolling patients with moderate to severe psoriasis in a study of a new investigational drug. Visit us at www.delawarevalleyderm.com to learn more.