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Louganis, Greg E.

(Encyclopedia)Louganis, Greg E. lo͞ogāˈnĭs [key], 1960–, American diver, b. San Diego, Calif. He won gold medals in springboard diving and platform diving in the 1984 Olympics and repeated in both categories ...

Fauci, Anthony Stephen

(Encyclopedia)Fauci, Anthony Stephen, 1940–, American physician, immunologist, and government official, b. Brooklyn, New York, M.D. Cornell, 1966. A senior investigator in the National Institute of Allergy and In...

United Nations Children's Fund

(Encyclopedia)United Nations Children's Fund (UNICEF), a specialized fund of the United Nations. It was established in 1946 as the United Nations International Children's Emergency Fund, and became a permanent part...

retrovirus

(Encyclopedia)retrovirus, type of RNA virus that, unlike other RNA viruses, reproduces by transcribing itself into DNA. An enzyme called reverse transcriptase allows a retrovirus's RNA to act as the template for th...

circumcision

(Encyclopedia)circumcision sûrˌkəmsĭzhˈən [key], operation to remove the foreskin covering the glans of the penis. It dates back to prehistoric times and was widespread throughout the Middle East as a religio...

hemophilia

(Encyclopedia)hemophilia hēˌməfĭlˈēə, –fēlˈyə [key], genetic disease in which the clotting ability of the blood is impaired and excessive bleeding results. The disease is transmitted through females but...

Nilsson, Lennart

(Encyclopedia)Nilsson, Lennart lĕnˈnärt nĭlˈsôn [key], 1922–2017, Swedish photographer who made pioneering microphotographs of embryos and the human body. Nilsson began his career as a photojournalist, chro...

immunology

(Encyclopedia)immunology, branch of medicine that studies the response of organisms to foreign substances, e.g., viruses, bacteria, and bacterial toxins (see immunity). Immunologists study the tissues and organs of...

blood transfusion

(Encyclopedia)blood transfusion, transfer of blood from one person to another, or from one animal to another of the same species. Transfusions are performed to replace a substantial loss of blood and as supportive ...

Kim, Jim Yong

(Encyclopedia)Kim, Jim Yong, 1959–, Korean-American physician, university administrator, and global health specialist, b. Seoul, grad. Brown (A.B., 1982), Harvard (M.D., 1991, Ph.D., 1993). He moved to Iowa with ...

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