The Cooperative Human Tissue Network (CHTN) is a unique NCI supported biospecimen resource. The CHTN provides human tissues and fluids from routine surgical and autopsy procedures to investigators who utilize human biospecimens in their research. Unlike other biobanks, the CHTN works prospectively with each investigator to tailor specimen acquisition and processing to meet their specific project requirements. The purpose of the CHTN is to stimulate, for the good of the public, cooperative efforts to collect and distribute human biospecimens and to thereby, facilitate research utilizing those specimens. These activities are expected to encourage basic and developmental studies in many areas of cancer research. The CHTN is comprised of 5 adult divisions and 1 pediatric division and are located at the following institutions: CHTN Eastern Division - University of Pennsylvania CHTN Mid-Atlantic Division - University of Virginia CHTN Midwestern Division - The Ohio State University CHTN Pediatric Division - Nationwide Children's Hospital CHTN Southern Division - Duke University CHTN Western Division - Vanderbilt University Medical Center Please visit www.chtn.org for more information.