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JAMA. 1951;147(10):989. doi:10.1001/jama.1951.03670270079027.
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Fourth International Blood Transfusion Congress.  —With its moorish background, tropical summer, and pastel-colored backdrop, Lisbon was the venue of the fourth International Blood Transfusion Congress. This westernmost extremity of Europe was largely destroyed by an earthquake in 1755. Because of this, Lisbon is an 18th century city. More recent economic transfusions resulting from the export of tungsten (wolfram) and coffee have further modernized the city with highways, parks, an airport and rehousing settlements.The attendance of 300 was representative of at least 26 countries, but French, English, and Portuguese were the official languages. It was soon obvious, especially in the serology section meetings, that the frontiers of knowledge in this field were advancing on an ever-widening perimeter. As the splendid historical exposition reminded us so graphically, the discoveries of the ABO system (and later the Rh system) constituted the starting point of a special type of transplant to which the


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