UPDWG Webinar – The economic and operational value of using drones to transport vaccines-20160726 1505-1 Posted on May 22, 2019 https://www.updwg.org/wp-content/uploads/2019/05/UPDWG-Webinar-The-economic-and-operational-value-of-using-drones-to-transport-vaccines-20160726-1505-1.mp4 Share this post: