Created in 2013 from the merger of two successful Boston-area HSR&D Centers of Excellence, CHOIR – the Center for Healthcare Organization and Implementation Research – now has the scientists, the environment, and the resources to respond and contribute to the challenges that Veterans' healthcare will face in the years to come. CHOIR's MISSION is to conduct organizationally-partnered, and Veteran- partnered research in order to develop, implement, and evaluate evidence-based and innovative practices that improve VA healthcare. Our VISION is that CHOIR serve as a large, vibrant, multi-campus Center which engages the healthcare- and university-rich environment of Greater Boston to enhance VA services and contribute to health services research (HSR) nationally and internationally. Our PRIORITY GOALS are: (1) to advance the field of HSR by sustaining, developing, and growing our existing, scientific focus areas, and growing our evolving and emerging scientific areas; (2) to enrich VA's cadre of world-class HSR investigators, by supporting training and education across the career spectrum; (3) to grow and support innovation, to maintain VA at the cutting edge of HSR and adapt to meet VA's ever-changing needs. CHOIR's three main Scientific Focus Areas have developed from collaborations with key VA partners. Enhancing Recovery-Oriented Care for Vulnerable Populations [Major Partners: Office of Mental Health and Suicide Prevention, Center for Homelessness Among Veterans] seeks to understand and implement models of care to develop Veterans' independence, particularly in those with behavioral vulnerabilities such as mental health challenges, homelessness and involvement with the justice system. Medication Management & Outcomes [Major Partner: Pharmacy Benefits Management] addresses best practices for pharmaceutical use, including studies of the quality, safety, and value of prescribing and studies to engage Veterans in medication decision-making and improve adherence. Healthcare Communications [Major Partners: Office of Connected Care, Office of Patient-Centered Care & Cultural Transformation] conducts research on communicating adverse events to patients, on communicating with patients using connected care technologies, and on patient-centered communication and care coordination. In addition to these, CHOIR's Evolving Scientific Areas, first germinated as new emerging areas 5 years ago, are now mature: Long-Term Care is partnered with the VA Office of Geriatrics and Extended Care and studies Community Living Centers, models of Geriatric primary care, and team-based care for the elderly, and Patient Safety, partnered with the VA National Center for Patient Safety, improves measurement of patient safety by facilitating standardization and integration across existing patient safety measures, developing and testing new measures to improve on traditional approaches. CHOIR research has had major impacts on research and on VA systems of care. Just two out of man...