as Penn SP2, is a school of social policy and social work that offers degrees in a variety of subfields, in addition to several dual degree programs and sub-matriculation programs. Penn SP2's vision is: "The passionate pursuit of social innovation, impact and justice." Originally named the School of Social Work, SP2 was founded in 1908 and is a graduate school of the University of Pennsylvania. The school specializes in research, education, and policy development in relation to both social and economic issues. The School of Veterinary Medicine offers five dual-degree programs, combining the Doctor of Veterinary Medicine (VMD) with a Master of Social Work (MSW), Master of Environmental Studies (MES), Doctor of Philosophy (PhD), Master of Public Health (MPH) or Masters in Business Administration (MBA) degree. The Penn Vet dual-degree programs are meant to support veterinarians planning to engage in interdisciplinary work in the areas of human health, environmental health, and animal health and welfare. Academic medical center and biomedical research complex In 2018, the university's nursing school was ranked number one by Quacquarelli Symonds. That year, Quacquarelli Symonds also ranked Penn's school of Veterinary Medicine sixth. In 2019, the Perelman School of Medicine was named the third-best medical school for research in U.S. News & World Report's 2020 ranking. The University of Pennsylvania Health System (also known as UPHS) is a multi-hospital health system headquartered in Philadelphia, Pennsylvania, owned by Trustees of University of Pennsylvania. UPHS and the Perelman School of Medicine at the University of Pennsylvania together constitute Penn Medicine, a clinical and research entity of the University of Pennsylvania. UPHS hospitals include the Hospital of the University of Pennsylvania, Penn Presbyterian Medical Center, Pennsylvania Hospital, Chester County Hospital, Lancaster General Hospital, and Princeton Medical Center. Penn Medicine owns and operates the first hospital in the United States, the Pennsylvania Hospital. It is also home to America's first surgical amphitheatre and its first medical library. Research, innovations and discoveries Penn is classified as an "R1" doctoral university: "Highest research activity." Its economic impact on the Commonwealth of Pennsylvania for 2015 amounted to $14.3 billion. Penn's research expenditures in the 2018 fiscal year were $1.442 billion, the fourth largest in the U.S. In fiscal year 2019 Penn received $582.3 million in funding from the National Institutes of Health. In line with its well-known interdisciplinary tradition, Penn's research centers often span two or more disciplines. In the 2010–2011 academic year