POSTER SESSION I Monday, March 24, 2003   —  9:30 AM - 12:00 Noon Exhibit Hall A - C PEDIATRIC PATHOLOGY 201 Rhabdomyosarcoma Expresses Genes Associated with Inhibition of Myoblast Differentiation (1276) AE Heerema, S Linn, S Zhu, M van de Rijn Stanford University Medical Center, Stanford, CA