Jonas Salk
19141995
American physician, inventor, immunologist, virologist, and epidemiologist who developed one of the first successful polio vaccines
6 choffadwriaeth wedi'u canfod
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Gweld pob un yn Bywydau gyda'r hidlydd wedi'i gymhwyso19141994
British biochemist and Nobel laureate who, with Archer Martin, invented partition chromatography