Hospital of the University of Pennsylvania 2 articles published in JoVE Cancer Research Molecular and Immunologic Techniques in a Genetically Engineered Mouse Model of Gastrointestinal Stromal Tumor Andrew D. Tieniber1, Andrew N. Hanna1, Kevin Do1, Laura Wang1, Ferdinando Rossi1, Ronald P. DeMatteo1 1Department of Surgery, Hospital of the University of Pennsylvania The goal of this manuscript is to describe the KitV558Δ/+ mouse model and techniques for successful dissection and processing of mouse specimens. Medicine Taste Exam: A Brief and Validated Test Jennifer E. Douglas1,2, Corrine J. Mansfield2, Charles J. Arayata2, Beverly J. Cowart2, Lauren R. Colquitt2, Ivy W. Maina1,2, Mariel T. Blasetti3, Noam A. Cohen3, Danielle R. Reed2 1Perelman School of Medicine at the University of Pennsylvania, 2Monell Chemical Senses Center, 3Department of Otorhinolaryngology-Head and Neck Surgery, Division of Rhinology, Hospital of the University of Pennsylvania This protocol measures human taste responses and includes a brief anatomical assessment, a short taste test, and a validation method using the subject's reported sensation and taste receptor genotype.