Argentina recipient, discovered the role of pituitary hormones in regulating glucose in animals, and shared the Nobel Prize in Physiology or Medicine in 1947. Luis Leloir discovered how organisms store energy converting glucose into glycogen and the compounds which are fundamental in metabolizing carbohydrates, receiving the Nobel Prize in Chemistry in 1970. César Milstein did extensive research in antibodies, sharing the Nobel Prize in Physiology or Medicine in 1984. Argentine research has led to treatments for heart diseases and several forms of cancer. Domingo Liotta designed and developed the first artificial heart that was successfully implanted in a human being in
Comparison of MD and DO in the United States modest research programs compared to MD schools, and fewer DO schools are part of universities that own a hospital. Osteopathic medical schools tend to have a stronger focus on primary care medicine than MD schools. DO schools have developed various strategies to encourage their graduates to pursue primary care, such as offering accelerated 3-year programs for primary care, focusing clinical education in community health centers, and selecting rural or under-served urban areas for the location of new campuses. Many authors note the most obvious difference between the curricula of DO and MD schools is osteopathic manipulative medicine (OMM), a form