CAMBRIDGE – In a hastily organized plebiscite on July 16, held under the auspices of the opposition-controlled National Assembly to reject President Nicolás Maduro’s call for a National Constituent Assembly, more than 720,000 Venezuelans voted abroad. In the 2013 presidential election, only 62,311 did. Four days before the referendum, 2,117 aspirants took Chile’s medical licensing exam, of which almost 800 were Venezuelans.