Se recomiendan exámenes anuales de pulmón para los mayores de 50 aunque no hayan fumado mucho tiempo
By BY DENISE GRADY from NYT en Español
Mars rock found in Niger sells for millions in New York - now the country wants answers
The West African country investigates how a space rock found there was put up for sale in New York. from BBC News https://ift.tt/gVkA5X4 via
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