I'm not saying there's any connection, but I do recall that Cuba exports doctors to Venezuela in exchange for oil:
In exchange for oil shipments of up to 90,000 barrels per day, over 20,000 Cuban doctors and dentists are providing free health care services to Venezuelans near their homes in the country's poorest communities; many of whom had never seen a doctor before. Also part of the program is the training Venezuelan medical students in integral community medicine in Cuba.
