MADRID, SPAIN - MARCH 03: Queen Letizia of Spain attends the Rare Diseases World Day Event at Consejo Superior de Investigaciones Cientificas (CSIC) on March 3, 2016 in Madrid, Spain. (Photo by Juan Naharro Gimenez/Getty Images)
MADRID, SPAIN - MARCH 03: Queen Letizia of Spain attends the Rare Diseases World Day Event at Consejo Superior de Investigaciones Cientificas (CSIC) on March 3, 2016 in Madrid, Spain. (Photo by Juan Naharro Gimenez/Getty Images)