A Matternet M2 drone flies during a presentation of Swiss Post and the Ticino EOC hospital group in Lugano...
A Matternet M2 drone of U.S. manufacturer Matternet carrying a box containing laboratory samples flies during a presentation of Swiss Post and the Ticino EOC hospital group in front of the Ospedale Civico hospital in Lugano, Switzerland, March 31, 2017. REUTERS/Arnd Wiegmann