The Reproductive Tissue Sample Repository (RTSaR) is a virtual repository with online tissue sample acquisition capabilities. The RTSaR provides investigators with real-time access to human and nonhuman primate tissue and fluid inventories from four tissue bank facilities that are supported through the Specialized Cooperative Centers Program in Reproduction Research. The tissue banks are located at the University of California, San Diego (human ovary bank), Stanford University (human endometrium and DNA bank), Johns Hopkins University (male reproductive tissues and fluids), and the Oregon National Primate Research Center (nonhuman primate tissues)