The AACR Breast Cancer Research Fellowships represent a joint effort to encourage and support postdoctoral or clinical research fellows to conduct breast cancer research and to establish a successful career path in this field. The research proposed for funding may be basic, translational, clinical, or epidemiological in nature and must have direct applicability and relevance to breast cancer. These fellowships provide two-year grants of $120,000 to support the salary and benefits of the fellow while working on mentored breast cancer research. Applicants must have received their doctoral degree within the last 5 years.