MADRID, SPAIN - MARCH 03: Queen Letizia of Spain attends the Rare Diseases World Day at CSIC headquarters on March 3, 2016 in Madrid, Spain. (Photo by Europa Press/Europa Press via Getty Images)
MADRID, SPAIN - MARCH 03: Queen Letizia of Spain attends the Rare Diseases World Day at CSIC headquarters on March 3, 2016 in Madrid, Spain. (Photo by Europa Press/Europa Press via Getty Images)