George Snell shared the 1980 Nobel Prize in Physiology or Medicine with Baruj Benacerraf and Jean Dausset for their discoveries concerning `` genetically determined structures on the cell surface that regulate immunological reactions '' .
Snell won the Nobel Prize in Physiology or Medicine in 1980 with Baruj Benacerraf and Jean Dausset . They won it `` for their discoveries concerning genetically determined structures on the cell surface that regulate immunological reactions '' .