| Nomination for Nobel Prize in Physiology or Medicine | 
| Year: | 1940 | 
| Number: | 20 - 0 | 
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| Nominee 1: 
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| Name: | Bernardo Alberto  Houssay | 
| Gender: | M | 
| Year, Birth: | 1887 | 
| Year, Death: | 1971 | 
| Profession: | prof physiology | 
| University: | University of Buenos Aires | 
| City: | Buenos Aires | 
| Country: | ARGENTINA (AR) | 
| Awarded the Nobel Prize in Physiology or Medicine 1947 | 
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| Nominee 2: 
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| Name: | Angel H Roffo | 
| Gender: | M | 
| Year, Birth: | 1881 | 
| Year, Death: | 1947 | 
| Profession: | prof, head | 
| University: | Institute of Biology and Experimental Medicine | 
| City: | Buenos Aires | 
| Country: | ARGENTINA (AR) | 
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| Motivation: | B. Houssay:  Influence of glands of internal secretion on control of carbohydrate storage and utilization; especially the physiological 
importance of the pituitary gland for carbohydrate metabolism.
A. Roffo:  clinical and experimental studies on cancer. | 
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| Nominator: 
 | 
| Name: | Eduardo  Bello | 
| Gender: | M | 
| Profession: | prof medicine | 
| University: | University of Lima | 
| City: | Lima | 
| Country: | PERU (PE) | 
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