Puerto Rico's health care system is grappling with severe understaffing and power outages, and the flight of workers seeking better wages abroad is expected to worsen. That's why one doctor, Pedro Juan Vázquez, who is better known by his stage name PJ Sin Suela, is trying to fill the gaps. He has been treating patients during the day and performing his rap sets at night, singing about the many challenges Puerto Ricans face on the island. (AP video shot by Alejandro Granadillo)