A doctor observes a screen showing a graphical representation of a heart of a woman who is lying down during a whole-body scan in the tomography section of Havana's main cardiology and heart surgery hospital October 19, 2012. Universal free education and free medical healthcare for all the population are two of the pillars of the socialist society built in Cuba since Fidel Castro's 1959 revolution. REUTERS/Desmond Boylan (CUBA - Tags: SOCIETY HEALTH)