Alder Hey Children's Hospital is a major national children's hospital and NHS foundation trust located in the suburb of West Derby; in the city of Liverpool, England. It is one of the largest children's hospitals in the United Kingdom and Europe, and one of several specialist hospitals located within the Liverpool City Region. The hospital was founded in 1914. During the First World War, the United States Army established Camp Hospital 40 on the site, operated by Hospital Unit Q and, subsequently, Unit W. American sources commonly refer to Alder Hey as being within Liverpool's Knotty Ash area. The hospital became an NHS hospital trust in 1991. It currently employs about 2,400 staff and treats over 270,000 children from across the UK each year. In August 2008 the Royal Liverpool Children's NHS Trust became an NHS foundation trust and changed its name. Alder Hey conducts paediatric research into children’s medicines, infection, inflammation and oncology. It has research partners including the University of Liverpool and is a member of Liverpool Health Partners. Alder Hey conducts more than 100 clinical research studies on an ongoing basis, ranging from observation to clinical trials. The hospital is within the NHS National Institute for Health Research's Top 100 Performing Trust's for participation recruitment in 2013/14. Alder Hey was a finalist in the Clinical Research Impact category of the 2013 HSJ Awards and in 2014 the innovation team received the Health Service Journal Award for improving health care with technology. In 2016 the first phase of a bespoke research, education and innovation centre, Institute in the Park, opened next to Alder Hey in the Park. In November 2015, the institute hosted a children's health Hackathon in conjunction with Massachusetts Institute of Technology. An international child health development programme led by Alder Hey clinicians focuses on humanitarian work in developing countries. The programme includes provision of immediate medical support, knowledge sharing and involvement with international clinical trials. The programme has undertaken work across Africa and Asia, including Pakistan, Malawi, Nepal and India.