This document discusses clinical trials and options for participating in clinical trials. It provides information about clinical trial registries, noting that registries are collections of information about individuals focused on a specific diagnosis or condition, and participation is voluntary. It also includes a link to a video about the unethical Tuskegee syphilis study. The document then discusses questions and criticisms about clinical trials and includes an agenda for a course on envisioning the future of healthcare in 2050 that will analyze organizational functions, stakeholders, and potential futures and issues.