Mylan NL CEO Heather Bresch holds EpiPens during a House Oversight and Government Reform Committee hearing on the Rising Price of EpiPens at the Capitol in Washington, U.S., September 21, 2016. REUTERS/Yuri Gripas

Mylan NL CEO Heather Bresch holds EpiPens during a House Oversight and Government Reform Committee hearing on the Rising Price of EpiPens at the Capitol in Washington, U.S., September 21, 2016. REUTERS/Yuri Gripas

Mexican pop duo Jesse & Joy perform during the 55th International Song Festival in Vina del Mar city, about 121km (75 miles) northwest of Santiago, February 28, 2014. REUTERS/Eliseo Fernandez

Latin recording artist Djavan works through his set during rehearsals for the first annual Latin Grammy Awards at the Staples Center in Los Angeles, September 12, 2000. Reuters photographer

President Petro Poroshenko of Ukraine addresses the United Nations General Assembly in the Manhattan borough of New York, U.S., September 21, 2016. REUTERS/Mike Segar

Football Soccer - Real Madrid v Villarreal - Spanish Liga Santander - Santiago Bernabeu, Madrid, Spain - 21/09/16. Real Madrid's Karim Benzema and Villarreal's Mario Gaspar in action. REUTERS/Sergio Perez

Football Soccer - Real Madrid v Villarreal - Spanish Liga Santander - Santiago Bernabeu, Madrid, Spain - 21/09/16. Real Madrid's Karim Benzema and Villarreal's Mateo Musacchio in action. REUTERS/Sergio Perez

Football Soccer - Real Madrid v Villarreal - Spanish Liga Santander - Santiago Bernabeu, Madrid, Spain - 21/09/16. Real Madrid's Marcelo and Villarreal's Samuel Castillejo in action. REUTERS/Sergio Perez