Hear Dr. Joel Gelfand, Director of the Psoriasis and Phototherapy Treatment Center at University of Pennsylvania, expand on his discussion of the value of phototherapy and the patient/provider requirements for becoming involved in the Light Treatment Effectiveness or LITE Study. To view disclosure information and claim credit, go to https://www.eeds.com/em/1114 . This program is supported by unrestricted educational grants from Bristol-Myers Squibb, Lilly and Ortho Dermatologics.