? Core A, Administrative Core The Administrative Core, Core A, provides overall scientific, organizational, administrative, fiscal, and regulatory management of this P01, ?Clinical Care Gaps and Unmet Needs in Adolescent and Young Adult (AYA) Cancer Survivors.? Organizationally, the core will be led by an Executive Committee (EC) consisting of the four multiple Principal Investigators, Project 2 leader Dr. Erin Hahn, and Core B leader Dr. Charles Quesenberry; thus, all project and core leaders are represented on the EC. The EC will be responsible for overseeing projects, shared resources, institutional budgets, subcontracts, and Institutional Review Board submissions and modifications. It will oversee allocation of resources to align with the needs of individual projects and cores as well as the P01 overall. The EC will also be responsible for soliciting and incorporating insights from an External Advisory Board (EAB) that includes six individuals with substantial expertise in the areas of interest for this P01. The EC will interact with the Steering Committee (SC), including all project and core leadership and key co-investigators, including Ms. Mallory Casperson, an AYA cancer survivor and CEO and founder of Lacuna Loft, an online AYA patient support and advocacy group. The SC will be responsible for overall scientific strategies and decisions, and ensuring synergy and dissemination of best practices among all P01 components. The SC is also central in communicating about P01 activities with the external research and patient communities. Core A will have three standing committees: 1) Population and Data Resources, working closely with the Biostatistics and Survey Shared Resource Cores (Cores B and C, respectively); 2) Publications and Ancillary Studies; and 3) Patient Engagement. Core A Specific Aims are to: 1. Provide overall scientific, organizational, administrative, fiscal, and regulatory management of this P01; 2. Implement methods for and facilitate seamless communication among all components of the P01; identify efficiencies, common interests or approaches; and enhance synergy among program components; 3. Identify and incorporate opportunities to enhance the relevance and impact of this P01, through a patient engagement committee, through the EAB, and through other informal interchanges with the clinical, patient, and scientific communities. Core A will provide oversight of all P01 activities. EC and SC members have experience in areas critical to this program of research, including AYA cancer survivorship; patient engagement in research; healthcare data acquisition and analysis; and directing and managing national multisite research consortia. These experiences guide the organizational structure under which the P01 will operate, which emphasizes integration of projects and shared resource cores to enhance synergy, incorporates the views of AYA cancer survivors, and interacts with an outstanding EAB. This Core will ensure that the promise described in the P01 project components reach their maximal potential.