Word: microbiologists
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Dates: during 1950-1959
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...basic technique was worked out at the Rockefeller Institute for Medical Research by a team including famed Microbiologist René J. Dubos and Dr. Gardner Middlebrook. Between 5 and 7 cc of blood (less than two teaspoons) are drawn from an arm vein. The serum (amber fluid) is separated from the cells and added to a specially treated preparation containing the red cells of sheep's blood. The mixture is kept at blood heat for two hours and then left at room temperature overnight...