Ralph Steinman rendered great services in the field of biology and medical, his invention would be recalled in the world forever. Ralph Steinman, Marvin, was born on 14th January 1943 and died on September 2011; he was a Jewish Canadian-born immunologist and researcher in cell biology from Rockefeller University. In 1963 Dr. Steinman studied at university of McGill and in 1968 from Harvard medical school. He joined Rockefeller for completing his internship in 1970. After his internship he was appointed as an assistant professor. He was a great inventor, and renowned for his best invention of dendritic cells along ...