Domingo Liotta Author of the Law 20748, The National System of Public Health. 1991-94: Surgeon-in-Chief, Cardiovascular Clinic Institute, Buenos Aires, Argentina. 1994-96: Secretary of State for Science and Technology and President of the National Council of Scientific and Technological Research (CONICET), Argentina. 1997–present: Dean of the School of Medicine, University of Morón, Argentina Member of numerous Medical Societies around the world. Owner of 12 patent inventions in USA, Argentina and France. Author of hundreds of scientific publications and scientific books. Author of medical humanism books in English and Spanish. Recently published his autobiography,"Amazing Adventures of a Heart Surgeon. The Artificial Heart: The
MD Helicopters MD 500 in 1953. Images and analyses done regarding North Korea's MD 500 helicopters show that they have been modified significantly to serve as light attack helicopters, such as modification work on the helicopters for them to be mounted with Soviet-designed AT-3 Sagger anti-tank wire-guided missiles. The MD 500 is widely operated by private individuals, companies and law enforcement agencies around the world. MD Helicopters MD 500 The MD Helicopters MD 500 series is an American family of light utility civilian and military helicopters. The MD 500 was developed from the Hughes 500, a civilian version of the US Army's OH-6A Cayuse/Loach.