S20-152 A Multiparallel, High-dimensional Analysis of T Cell Therapeutic Phenotypes, which Induce Cell Death and Release Molecules Which Transform Tumor to an Anti-proliferative Program Stanford researchers have created a technology using CyTOF (Cytometry by Time Of Flight mass spectrometry) and CODEX (CO-Detection by indEXing) imaging to systematically analyze cell therapies produced ex vivo and their effects in vivo. John Hickey Garry Nolan