U.S. Department of Health and Human Services, National Institutes of Health, National Institute of Neurological Disorders and Stroke announces the availability of funding for implementation of the Research on Chronic Overlapping Pain Conditions (R21) Exploratory/Developmental Research Grant. The purpose of this grant is to increase understanding of the natural history, prevalence, biological mechanisms, psychological variables, and clinical risk factors responsible for the presence of multiple chronic pain conditions in people with pain. The R21 exploratory/developmental grant supports investigation of novel scientific ideas or new model systems, tools, or technologies that have the potential for significant impact on . . .